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Frances Hellman - Publications

Affiliations: 
1987-2004 Materials Sci and Engineering University of California, San Diego, La Jolla, CA 
 2005- Physics University of California, Berkeley, Berkeley, CA, United States 
Area:
Materials Science Engineering, Condensed Matter Physics
Website:
http://physics.berkeley.edu/people/faculty/frances-hellman
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171 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2020 Bouma DS, Chen Z, Zhang B, Bruni F, Flatté ME, Ceballos A, Streubel R, Wang L, Wu RQ, Hellman F. Itinerant ferromagnetism and intrinsic anomalous Hall effect in amorphous iron-germanium Physical Review B. 101. DOI: 10.1103/Physrevb.101.014402  0.413
2020 Kennedy E, Reynolds N, DaCosta LR, Hellman F, Ophus C, Scott MC. Tilted fluctuation electron microscopy Applied Physics Letters. 117: 91903. DOI: 10.1063/5.0015532  0.323
2019 Liu X, Kent N, Ceballos A, Streubel R, Jiang Y, Chai Y, Kim PY, Forth J, Hellman F, Shi S, Wang D, Helms BA, Ashby PD, Fischer P, Russell TP. Reconfigurable ferromagnetic liquid droplets. Science (New York, N.Y.). 365: 264-267. PMID 31320536 DOI: 10.1126/Science.Aaw8719  0.378
2019 Roschewsky N, Walker ES, Gowtham P, Muschinske S, Hellman F, Bank SR, Salahuddin S. Spin-orbit torque and Nernst effect in Bi-Sb/Co heterostructures Physical Review B. 99. DOI: 10.1103/Physrevb.99.195103  0.335
2019 Kent N, Streubel R, Lambert C, Ceballos A, Je S, Dhuey S, Im M, Büttner F, Hellman F, Salahuddin S, Fischer P. Generation and stability of structurally imprinted target skyrmions in magnetic multilayers Applied Physics Letters. 115: 112404. DOI: 10.1063/1.5099991  0.359
2019 El-Ghazaly A, Tran B, Ceballos A, Lambert C, Pattabi A, Salahuddin S, Hellman F, Bokor J. Ultrafast magnetization switching in nanoscale magnetic dots Applied Physics Letters. 114: 232407. DOI: 10.1063/1.5098453  0.373
2019 Kennedy E, Ceballos A, Hellman F, Ophus C, Scott M. Tilted Fluctuation Electron Microscopy Characterization of Magnetically Anisotropic Amorphous Metal Films Microscopy and Microanalysis. 25: 1886-1887. DOI: 10.1017/S143192761901016X  0.438
2018 Karel J, Bouma DS, Martinez J, Zhang YN, Gifford JA, Zhang J, Zhao GJ, Kim DR, Li BC, Huang ZY, Wu RQ, Chen TY, Hellman F. Enhanced spin polarization of amorphous FexSi1−x thin films revealed by Andreev reflection spectroscopy Physical Review Materials. 2. DOI: 10.1103/Physrevmaterials.2.064411  0.726
2018 Godeke A, Hellman F, Kate HHJt, Mentink MGT. Fundamental origin of the large impact of strain on superconducting Nb3Sn Superconductor Science and Technology. 31: 105011-105011. DOI: 10.1088/1361-6668/Aad980  0.356
2018 Roschewsky N, Schafer S, Hellman F, Nikitin V. Perpendicular magnetic tunnel junction performance under mechanical strain Applied Physics Letters. 112: 232401-232401. DOI: 10.1063/1.5034145  0.328
2018 Kennedy E, Ceballos A, Hellman F, Ophus C, Scott M. Characterizing Magnetic Anisotropy in Amorphous Metal Films Using Tilted Fluctuation Electron Microscopy Microscopy and Microanalysis. 24: 204-205. DOI: 10.1017/S1431927618001514  0.442
2017 Hellman F, Hoffmann A, Tserkovnyak Y, Beach GSD, Fullerton EE, Leighton C, MacDonald AH, Ralph DC, Arena DA, Dürr HA, Fischer P, Grollier J, Heremans JP, Jungwirth T, Kimel AV, et al. Interface-Induced Phenomena in Magnetism. Reviews of Modern Physics. 89. PMID 28890576 DOI: 10.1103/Revmodphys.89.025006  0.686
2017 Ceballos A, Chen Z, Schneider O, Bordel C, Wang L, Hellman F. Effect of strain and thickness on the transition temperature of epitaxial FeRh thin-films Applied Physics Letters. 111: 172401-172401. DOI: 10.1063/1.4997901  0.426
2016 Karel J, Bordel C, Bouma DS, de Lorimier-Farmer A, Lee HJ, Hellman F. Scaling of the anomalous Hall effect in lower conductivity regimes Epl (Europhysics Letters). 114: 57004. DOI: 10.1209/0295-5075/114/57004  0.762
2016 Charilaou M, Bordel C, Berche P, Maranville BB, Fischer P, Hellman F. Magnetic properties of ultrathin discontinuous Co/Pt multilayers: Comparison with short-range ordered and isotropicCoPt3films Physical Review B. 93. DOI: 10.1103/Physrevb.93.224408  0.698
2016 Mentink MGT, Dhalle MMJ, Dietderich DR, Godeke A, Hellman F, Kate HHJt. The effects of disorder on the normal state and superconducting properties of Nb3Sn Superconductor Science and Technology. 30: 025006. DOI: 10.1088/1361-6668/30/2/025006  0.335
2016 Wang S, Antonakos C, Bordel C, Bouma DS, Fischer P, Hellman F. Ultrathin IBAD MgO films for epitaxial growth on amorphous substrates and sub-50 nm membranes Applied Physics Letters. 109: 191603. DOI: 10.1063/1.4966956  0.408
2016 Roschewsky N, Matsumura T, Cheema S, Hellman F, Kato T, Iwata S, Salahuddin S. Spin-orbit torques in ferrimagnetic GdFeCo alloys Applied Physics Letters. 109. DOI: 10.1063/1.4962812  0.405
2015 Baldasseroni C, Bordel C, Antonakos C, Scholl A, Stone KH, Kortright JB, Hellman F. Temperature-driven growth of antiferromagnetic domains in thin-film FeRh. Journal of Physics. Condensed Matter : An Institute of Physics Journal. 27: 256001. PMID 26043719 DOI: 10.1088/0953-8984/27/25/256001  0.799
2015 Charilaou M, Hellman F. Surface-induced phenomena in uncompensated collinear antiferromagnets. Journal of Physics. Condensed Matter : An Institute of Physics Journal. 27: 086001. PMID 25654427 DOI: 10.1088/0953-8984/27/8/086001  0.389
2015 Liu X, Queen DR, Metcalf TH, Karel JE, Hellman F. Amorphous dielectric thin films with extremely low mechanical loss Archives of Metallurgy and Materials. 60: 359-363. DOI: 10.1515/Amm-2015-0059  0.741
2015 Queen DR, Liu X, Karel J, Wang Q, Crandall RS, Metcalf TH, Hellman F. Light-induced metastability in pure and hydrogenated amorphous silicon Epl. 112: 26001-26001. DOI: 10.1209/0295-5075/112/26001  0.713
2015 Karel J, Juraszek J, Minar J, Bordel C, Stone KH, Zhang YN, Hu J, Wu RQ, Ebert H, Kortright JB, Hellman F. Effect of chemical order on the magnetic and electronic properties of epitaxial off-stoichiometry FexSi1-x thin films Physical Review B - Condensed Matter and Materials Physics. 91. DOI: 10.1103/Physrevb.91.144402  0.76
2015 Charilaou M, Hellman F. Roughness effects in uncompensated antiferromagnets Journal of Applied Physics. 117. DOI: 10.1063/1.4913594  0.406
2015 Queen DR, Liu X, Karel J, Jacks HC, Metcalf TH, Hellman F. Two-level systems in evaporated amorphous silicon Journal of Non-Crystalline Solids. 426: 19-24. DOI: 10.1016/J.Jnoncrysol.2015.06.020  0.741
2014 Liu X, Queen DR, Metcalf TH, Karel JE, Hellman F. Hydrogen-free amorphous silicon with no tunneling states. Physical Review Letters. 113: 025503. PMID 25062205 DOI: 10.1103/Physrevlett.113.025503  0.734
2014 Charilaou M, Hellman F. Anomalous magnetic thermodynamics in uncompensated collinear antiferromagnets Epl. 107. DOI: 10.1209/0295-5075/107/27002  0.41
2014 Karel J, Zhang YN, Bordel C, Stone KH, Chen TY, Jenkins CA, Smith DJ, Hu J, Wu RQ, Heald SM, Kortright JB, Hellman F. Using structural disorder to enhance the magnetism and spin-polarization in FexSi1-x thin films for spintronics Materials Research Express. 1. DOI: 10.1088/2053-1591/1/2/026102  0.383
2014 Charilaou M, Bordel C, Hellman F. Magnetization switching and inverted hysteresis in perpendicular antiferromagnetic superlattices Applied Physics Letters. 104. DOI: 10.1063/1.4880821  0.334
2014 Baldasseroni C, Pálsson GK, Bordel C, Valencia S, Unal AA, Kronast F, Nemsak S, Fadley CS, Borchers JA, Maranville BB, Hellman F. Effect of capping material on interfacial ferromagnetism in FeRh thin films Applied Physics Letters. 104. DOI: 10.1063/1.4862961  0.811
2013 Lundt N, Kelly ST, Rödel T, Remez B, Schwartzberg AM, Ceballos A, Baldasseroni C, Anastasi PA, Cox M, Hellman F, Leone SR, Gilles MK. High spatial resolution Raman thermometry analysis of TiO2 microparticles. The Review of Scientific Instruments. 84: 104906. PMID 24182150 DOI: 10.1063/1.4824355  0.777
2013 Lee HJ, Bordel C, Karel J, Cooke DW, Charilaou M, Hellman F. Electron-mediated ferromagnetic behavior in CoO/ZnO multilayers. Physical Review Letters. 110: 087206. PMID 23473197 DOI: 10.1103/Physrevlett.110.087206  0.743
2013 Mentink MGT, Bonevich JE, Dhalle MMJ, Dietderich DR, Godeke A, Hellman F, Ten Kate HHJ. Superconductivity in Nb-Sn thin films of stoichiometric and Off-stoichiometric compositions Ieee Transactions On Applied Superconductivity. 23. DOI: 10.1109/Tasc.2012.2235513  0.451
2013 Queen DR, Liu X, Karel J, Metcalf TH, Hellman F. Excess specific heat in evaporated amorphous silicon Physical Review Letters. 110. DOI: 10.1103/Physrevlett.110.135901  0.746
2013 Charilaou M, Hellman F. Mean-field simulation of metal oxide antiferromagnetic films and multilayers Physical Review B - Condensed Matter and Materials Physics. 87. DOI: 10.1103/Physrevb.87.184433  0.487
2013 Boekelheide Z, Hellman F. Cr(110) texture induced by epitaxy on Al2O3(0001) substrates: Preferential grain growth in the 001 direction Applied Physics Letters. 102. DOI: 10.1063/1.4801083  0.789
2013 Greer AA, Gray AX, Kanai S, Kaiser AM, Ueda S, Yamashita Y, Bordel C, Palsson G, Maejima N, Yang S, Conti G, Kobayashi K, Ikeda S, Matsukura F, Ohno H, ... ... Hellman F, et al. Publisher's Note: “Observation of boron diffusion in an annealed Ta/CoFeB/MgO magnetic tunnel junction with standing-wave hard x-ray photoemission” [Appl. Phys. Lett. 101, 202402 (2012)] Applied Physics Letters. 102: 019901. DOI: 10.1063/1.4773064  0.351
2013 Fischer P, Im MY, Baldasseroni C, Bordel C, Hellman F, Lee JS, Fadley CS. Magnetic imaging with full-field soft X-ray microscopies Journal of Electron Spectroscopy and Related Phenomena. 189: 196-205. DOI: 10.1016/J.Elspec.2013.03.012  0.797
2012 Cooke DW, Hellman F, Baldasseroni C, Bordel C, Moyerman S, Fullerton EE. Thermodynamic measurements of Fe-Rh alloys. Physical Review Letters. 109: 255901. PMID 23368481 DOI: 10.1103/Physrevlett.109.255901  0.805
2012 Bordel C, Juraszek J, Cooke DW, Baldasseroni C, Mankovsky S, Minár J, Ebert H, Moyerman S, Fullerton EE, Hellman F. Fe spin reorientation across the metamagnetic transition in strained FeRh thin films. Physical Review Letters. 109: 117201. PMID 23005667 DOI: 10.1103/Physrevlett.109.117201  0.805
2012 Gray AX, Cooke DW, Krüger P, Bordel C, Kaiser AM, Moyerman S, Fullerton EE, Ueda S, Yamashita Y, Gloskovskii A, Schneider CM, Drube W, Kobayashi K, Hellman F, Fadley CS. Electronic structure changes across the metamagnetic transition in FeRh via hard X-ray photoemission. Physical Review Letters. 108: 257208. PMID 23004654 DOI: 10.1103/Physrevlett.108.257208  0.397
2012 Boekelheide Z, Stewart DA, Hellman F. Chemical ordering in Cr 3Al and relation to semiconducting behavior Physical Review B - Condensed Matter and Materials Physics. 86. DOI: 10.1103/Physrevb.86.085120  0.791
2012 Boekelheide Z, Saerbeck T, Stampfl APJ, Robinson RA, Stewart DA, Hellman F. Antiferromagnetism in Cr 3Al and relation to semiconducting behavior Physical Review B - Condensed Matter and Materials Physics. 85. DOI: 10.1103/Physrevb.85.094413  0.808
2012 Greer AA, Gray AX, Kanai S, Kaiser AM, Ueda S, Yamashita Y, Bordel C, Palsson G, Maejima N, Yang SH, Conti G, Kobayashi K, Ikeda S, Matsukura F, Ohno H, ... ... Hellman F, et al. Observation of boron diffusion in an annealed Ta/CoFeB/MgO magnetic tunnel junction with standing-wave hard x-ray photoemission Applied Physics Letters. 101. DOI: 10.1063/1.4766351  0.407
2012 Baldasseroni C, Bordel C, Gray AX, Kaiser AM, Kronast F, Herrero-Albillos J, Schneider CM, Fadley CS, Hellman F. Temperature-driven nucleation of ferromagnetic domains in FeRh thin films Applied Physics Letters. 100. DOI: 10.1063/1.4730957  0.808
2012 Mentink MGT, Dhalle MMJ, Dietderich DR, Godeke A, Goldacker W, Hellman F, Ten Kate HHJ, Sumption MD, Susner MA. The effect of Ta and Ti additions on the strain sensitivity of bulk niobium-tin Physics Procedia. 36: 491-496. DOI: 10.1016/J.Phpro.2012.06.223  0.38
2011 Baldasseroni C, Queen DR, Cooke DW, Maize K, Shakouri A, Hellman F. Heat transfer simulation and thermal measurements of microfabricated x-ray transparent heater stages. The Review of Scientific Instruments. 82: 093904. PMID 21974597 DOI: 10.1063/1.3640407  0.779
2011 Cooke DW, Hellman F, Groves JR, Clemens BM, Moyerman S, Fullerton EE. Calorimetry of epitaxial thin films. The Review of Scientific Instruments. 82: 023908. PMID 21361612 DOI: 10.1063/1.3554440  0.442
2011 Mentink MGT, Anders A, Dhalle MMJ, Dietderich DR, Godeke A, Goldacker W, Hellman F, Ten Kate HHJ, Putnam D, Slack JL, Sumption MD, Susner MA. Analysis of bulk and thin film model samples intended for investigating the strain sensitivity of niobium-tin Ieee Transactions On Applied Superconductivity. 21: 2550-2553. DOI: 10.1109/Tasc.2010.2087373  0.364
2011 Zeng L, Zutz H, Hellman F, Helgren E, Ager JW, Ronning C. Magnetoelectronic properties of Gd-implanted tetrahedral amorphous carbon Physical Review B - Condensed Matter and Materials Physics. 84. DOI: 10.1103/Physrevb.84.134419  0.423
2011 Gray AX, Karel J, Minár J, Bordel C, Ebert H, Braun J, Ueda S, Yamashita Y, Ouyang L, Smith DJ, Kobayashi K, Hellman F, Fadley CS. Hard x-ray photoemission study of near-Heusler FexSi 1-x alloys Physical Review B - Condensed Matter and Materials Physics. 83. DOI: 10.1103/Physrevb.83.195112  0.724
2010 Cross JO, Newville M, Maranville BB, Bordel C, Hellman F, Harris VG. Evidence for nanoscale two-dimensional Co clusters in CoPt3 films with perpendicular magnetic anisotropy. Journal of Physics. Condensed Matter : An Institute of Physics Journal. 22: 146002. PMID 21389536 DOI: 10.1088/0953-8984/22/14/146002  0.722
2010 Boekelheide Z, Gray AX, Papp C, Balke B, Stewart DA, Ueda S, Kobayashi K, Hellman F, Fadley CS. Band gap and electronic structure of an epitaxial, semiconducting Cr0.80Al0.20 thin film. Physical Review Letters. 105: 236404. PMID 21231489 DOI: 10.1103/Physrevlett.105.236404  0.782
2010 Alemani M, Huegel A, Helgren E, Queen DR, Hellman F. Effect of magnetic Gd adatoms on the transport properties of ultrathin gold films Physical Review B - Condensed Matter and Materials Physics. 82. DOI: 10.1103/Physrevb.82.195447  0.428
2010 Zeng L, Cao JX, Helgren E, Karel J, Arenholz E, Ouyang L, Smith DJ, Wu RQ, Hellman F. Distinct local electronic structure and magnetism for Mn in amorphous Si and Ge Physical Review B - Condensed Matter and Materials Physics. 82. DOI: 10.1103/Physrevb.82.165202  0.743
2010 Shahzad F, Siddiqi SA, Im MY, Avallone A, Fischer P, Hussain Z, Siddiqi I, Hellman F. Layer resolved magnetization reversal study in SmCo5/Fe nanocomposite bilayers Chinese Physics B. 19. DOI: 10.1088/1674-1056/19/3/037504  0.311
2009 Boekelheide Z, Cooke DW, Helgren E, Hellman F. Resonant impurity scattering and electron-phonon scattering in the electrical resistivity of Cr thin films Physical Review B - Condensed Matter and Materials Physics. 80. DOI: 10.1103/Physrevb.80.134426  0.788
2009 Zink BL, Hellman F. Electronic and vibrational density of states through the metal-insulator transition in amorphous yttrium-silicon alloy thin films Physical Review B - Condensed Matter and Materials Physics. 79. DOI: 10.1103/Physrevb.79.235105  0.691
2009 Orlyanchik V, Weissman MB, Helgren E, Zeng L, Hellman F. Tracking spin-glass barriers versus field and temperature in a -Gd0.19 Si0.81 Physical Review B - Condensed Matter and Materials Physics. 79. DOI: 10.1103/Physrevb.79.224402  0.403
2009 Zeng L, Huegel A, Helgren E, Hellman F, Piamonteze C, Arenholz E. Publishers Note: X-ray absorption study of the electronic structure of Mn-doped amorphous Si (Applied Physics Letters (2008) 92 (142503)) Applied Physics Letters. 95. DOI: 10.1063/1.3238103  0.35
2009 Lee HJ, Helgren E, Hellman F. Gate-controlled magnetic properties of the magnetic semiconductor (Zn,Co)O Applied Physics Letters. 94. DOI: 10.1063/1.3147856  0.385
2009 Queen DR, Hellman F. Thin film nanocalorimeter for heat capacity measurements of 30 nm films Review of Scientific Instruments. 80. DOI: 10.1063/1.3142463  0.434
2009 Cooke DW, Boekelheide Z, Queen DR, Hellman F. The role of the spin-density wave and disorder in the density of states of sputtered Cr films Journal of Applied Physics. 105. DOI: 10.1063/1.3075588  0.808
2008 Cooke DW, Michel KJ, Hellman F. Thermodynamic measurements of submilligram bulk samples using a membrane-based "calorimeter on a chip". The Review of Scientific Instruments. 79: 053902. PMID 18513074 DOI: 10.1063/1.2912950  0.368
2008 Zeng L, Helgren E, Rahimi M, Hellman F, Islam R, Wilkens BJ, Culbertson RJ, Smith DJ. Quenched magnetic moment in Mn-doped amorphous Si films Physical Review B - Condensed Matter and Materials Physics. 77. DOI: 10.1103/Physrevb.77.073306  0.463
2008 Zeng L, Huegel A, Helgren E, Hellman F, Piamonteze C, Arenholz E. X-ray absorption study of the electronic structure of Mn-doped amorphous Si Applied Physics Letters. 92. DOI: 10.1063/1.2908050  0.374
2008 Srivastava RVA, Teizer W, Hellman F, Dynes RC. Using AG theory to model a S/I/N tunnel junction Physica B: Condensed Matter. 403: 1321-1322. DOI: 10.1016/J.Physb.2007.10.315  0.35
2007 Navrotsky A, Dorogova M, Hellman F, Cooke DW, Zink BL, Lesher CE, Boerio-Goates J, Woodfield BF, Lang B. Application of calorimetry on a chip to high-pressure materials. Proceedings of the National Academy of Sciences of the United States of America. 104: 9187-91. PMID 17488819 DOI: 10.1073/Pnas.0608165104  0.7
2007 Boekelheide Z, Helgren E, Hellman F. Spin-density wave in polycrystalline Cr films from infrared reflectivity Physical Review B - Condensed Matter and Materials Physics. 76. DOI: 10.1103/Physrevb.76.224429  0.788
2007 Helgren E, Hellman F, Zeng L, Sinenian N, Islam R, Smith DJ. Magnetic and transport properties of amorphous Gdx Ge1-x alloys near the metal-insulator transition Physical Review B - Condensed Matter and Materials Physics. 76. DOI: 10.1103/Physrevb.76.184440  0.479
2007 Zeng L, Helgren E, Hellman F, Islam R, Smith DJ. Erratum: Growth and microstructure dependence of electronic and magnetic properties in magnetically doped Gd-Si amorphous semiconductors (Physical Review B - Condensed Matter and Materials Physics (2007) 72, (184404)) Physical Review B. 76: 149905. DOI: 10.1103/Physrevb.76.149905  0.392
2007 Zeng L, Helgren E, Hellman F, Islam R, Smith DJ, Ager JW. Microstructure, magnetotransport, and magnetic properties of Gd-doped amorphous carbon Physical Review B - Condensed Matter and Materials Physics. 75. DOI: 10.1103/Physrevb.75.235450  0.416
2007 Zeng L, Helgren E, Hellman F, Islam R, Smith DJ. Growth and microstructure dependence of electronic and magnetic properties in magnetically doped Gd-Si amorphous semiconductors Physical Review B - Condensed Matter and Materials Physics. 75. DOI: 10.1103/Physrevb.75.184404  0.477
2007 Helgren E, Queen D, Hellman F, Zeng L, Islam R, Smith DJ. Concentration dependent microstructure and transport properties of the magnetic semiconductor Gd-Si Journal of Applied Physics. 101. DOI: 10.1063/1.2727446  0.404
2007 Guillotel E, Zeng L, Helgren E, Hellman F, Islam R, Smith DJ. Effects of annealing on amorphous Gdx Si1-x near the metal-insulator transition Journal of Applied Physics. 101. DOI: 10.1063/1.2426921  0.456
2006 Zink BL, Pietri R, Hellman F. Thermal conductivity and specific heat of thin-film amorphous silicon. Physical Review Letters. 96: 055902. PMID 16486955 DOI: 10.1103/Physrevlett.96.055902  0.695
2006 Zeng L, Helgren E, Zutz H, Ronning G, Hellman F. Magnetic rare earth (Gd) implanted tetrahedral amorphous carbon (ta-C) Materials Research Society Symposium Proceedings. 941: 74-79. DOI: 10.1557/Proc-0941-Q08-22  0.43
2006 Zink BL, Islam R, Smith DJ, Hellman F. Excess modes and enhanced scattering in rare-earth-doped amorphous silicon thin films Physical Review B - Condensed Matter and Materials Physics. 74. DOI: 10.1103/Physrevb.74.205209  0.706
2006 Helgren E, Zeng L, Burch K, Basov D, Hellman F. Field- and concentration-tuned scaling of a quantum phase transition in a magnetically doped semiconductor Physical Review B - Condensed Matter and Materials Physics. 73. DOI: 10.1103/Physrevb.73.155201  0.406
2006 Maranville BB, Schuerman M, Hellman F. Simulation of clustering and anisotropy due to Co step-edge segregation in vapor-deposited Co Pt3 Physical Review B - Condensed Matter and Materials Physics. 73. DOI: 10.1103/Physrevb.73.104435  0.688
2005 Helgren E, Cherry JJ, Zeng L, Hellman F. Characteristic temperature in magnetically doped amorphous semiconductors Physical Review B - Condensed Matter and Materials Physics. 71. DOI: 10.1103/Physrevb.71.113203  0.434
2005 Giannone L, Queen D, Hellman F, Fuchs JC. Prototype of a radiation hard resistive bolometer for ITER 32nd Eps Conference On Plasma Physics 2005, Eps 2005, Held With the 8th International Workshop On Fast Ignition of Fusion Targets - Europhysics Conference Abstracts. 3: 2222-2225. DOI: 10.1088/0741-3335/47/12/004  0.312
2005 Querlioz D, Helgren E, Queen DR, Hellman F, Islam R, Smith DJ. Beneficial effects of annealing on amorphous Nb-Si thin-film thermometers Applied Physics Letters. 87: 1-3. DOI: 10.1063/1.2135380  0.458
2005 Zink BL, Revaz B, Cherry JJ, Hellman F. Measurement of thermal conductivity of thin films with a Si-N membrane-based microcalorimeter Review of Scientific Instruments. 76. DOI: 10.1063/1.1848658  0.711
2005 Revaz B, Zink BL, Hellman F. Si-N membrane-based microcalorimetry: Heat capacity and thermal conductivity of thin films Thermochimica Acta. 432: 158-168. DOI: 10.1016/J.Tca.2005.04.004  0.71
2004 Bokacheva L, Teizer W, Hellman F, Dynes RC. Variation of the density of states in amorphous GdSi at the metal-insulator transition Physical Review B - Condensed Matter and Materials Physics. 69. DOI: 10.1103/Physrevb.69.235111  0.385
2004 Jorge GA, Jaime M, Civale L, Batista CD, Zink BL, Hellman F, Khaykovich B, Kastner MA, Lee YS, Birgeneau RJ. Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order Physical Review B - Condensed Matter and Materials Physics. 69: 174506-1-174506-8. DOI: 10.1103/Physrevb.69.174506  0.72
2004 Zink BL, Hellman F. Specific heat and thermal conductivity of low-stress amorphous Si-N membranes Solid State Communications. 129: 199-204. DOI: 10.1016/J.Ssc.2003.08.048  0.691
2004 Chumakov NK, Gudenko SV, Tugushev VV, Davydov AB, Ozhogin VI, Helgren E, Hellman F. Interplay between charge localization and magnetic ordering in amorphous GdxSi1-x Journal of Magnetism and Magnetic Materials. 272: 1351-1352. DOI: 10.1016/J.Jmmm.2003.12.076  0.412
2003 Teizer W, Hellman F, Dynes RC. Spin polarized tunneling at the metal-insulator transition International Journal of Modern Physics B. 17: 3723-3725. DOI: 10.1142/S021797920302168X  0.303
2003 Teizer W, Hellman F, Dynes RC. Hall effect at a tunable metal-insulator transition Physical Review B - Condensed Matter and Materials Physics. 67: 1211021-1211024. DOI: 10.1103/Physrevb.67.121102  0.355
2003 Haskel D, Freeland JW, Cross J, Winarski R, Newville M, Hellman F. XAFS study of local disorder in the a-Gd x Si 1-x amorphous magnetic semiconductor Physical Review B. 67: 115207. DOI: 10.1103/Physrevb.67.115207  0.355
2003 Tang YJ, Smith DJ, Zink BL, Hellman F, Berkowitz AE. Finite size effects on the moment and ordering temperature in antiferromagnetic CoO layers Physical Review B - Condensed Matter and Materials Physics. 67: 544081-544087. DOI: 10.1103/Physrevb.67.054408  0.72
2003 Liu M, Hellman F. Magnetic and transport properties of amorphous Tb-Si alloys near the metal-insulator transition Physical Review B - Condensed Matter and Materials Physics. 67: 544011-544016. DOI: 10.1103/Physrevb.67.054401  0.447
2003 Hellman F, Geerts W, Donehew B. High-field magneto-optic measurements of amorphous Gd-Si alloys Physical Review B - Condensed Matter and Materials Physics. 67: 124061-124064. DOI: 10.1103/Physrevb.67.012406  0.461
2003 Revaz B, Zink BL, O'Neil D, Hull L, Hellman F. Numerical simulation of the heat transfer in amorphous silicon nitride membrane-based microcalorimeters Review of Scientific Instruments. 74: 4389-4403. DOI: 10.1063/1.1605498  0.653
2003 Jan DB, Coulter JY, Hawley ME, Bulaevskii LN, Maley MP, Jia QX, Maranville BB, Hellman F, Pan XQ. Flux pinning enhancement in ferromagnetic and superconducting thin-film multilayers Applied Physics Letters. 82: 778-780. DOI: 10.1063/1.1542674  0.727
2003 Teizer W, Hellman F, Dynes RC. The Hall effect in a-GdxSi1-x at the metal-insulator transition Physica E: Low-Dimensional Systems and Nanostructures. 18: 266-269. DOI: 10.1016/S1386-9477(02)01011-1  0.418
2003 Hufnagel TC, Hellman F. Structural and magnetic length scales in amorphous TbFe2 Journal of Magnetism and Magnetic Materials. 256: 322-327. DOI: 10.1016/S0304-8853(02)00591-7  0.426
2003 Kim D, Zink BL, Hellman F, McCall S, Cao G, Crow JE. Mean-field behavior with Gaussian fluctuations at the ferromagnetic phase transition of SrRuO3 Physical Review B - Condensed Matter and Materials Physics. 67: 1004061-1004064.  0.68
2002 Kim D, Revaz B, Zink BL, Hellman F, Rhyne JJ, Mitchell JF. Tricritical point and the doping dependence of the order of the ferromagnetic phase transition of La1-xCaxMnO3. Physical Review Letters. 89: 227202. PMID 12485099 DOI: 10.1103/Physrevlett.89.227202  0.736
2002 Basov DN, Bratkovsky AM, Henning PF, Zink B, Hellman F, Wang YJ, Homes CC, Strongin M. Infrared probe of metal-insulator transition in Si1-xGdx and Si1-xYx amorphous alloys in magnetic field Europhysics Letters. 57: 240-246. DOI: 10.1209/Epl/I2002-00567-2  0.731
2002 Zink BL, Preisler V, Queen DR, Hellman F. Magnetic moments and interactions near the metal-insulator transition in amorphous magnetic semiconductors Physical Review B - Condensed Matter and Materials Physics. 66: 1952081-1952088. DOI: 10.1103/Physrevb.66.195208  0.742
2002 Kim D, Zink BL, Hellman F, Coey JMD. Critical behavior ofLa0.75Sr0.25MnO3 Physical Review B. 65. DOI: 10.1103/Physrevb.65.214424  0.691
2002 Revaz B, Cyrille M, Zink BL, Schuller IK, Hellman F. Enhancement of the electronic contribution to the low-temperature specific heat of an Fe/Cr magnetic multilayer Physical Review B. 65. DOI: 10.1103/Physrevb.65.094417  0.726
2002 Maranville BB, Hellman F. Oxygen-assisted room-temperature deposition of CoPt3 films with perpendicular magnetic anisotropy Applied Physics Letters. 81: 4011-4013. DOI: 10.1063/1.1523161  0.697
2002 Maranville BB, Shapiro AL, Hellman F, Schaadt DM, Yu ET. Miscut-angle dependence of perpendicular magnetic anisotropy in thin epitaxial CoPt3 films grown on vicinal MgO Applied Physics Letters. 81: 517-519. DOI: 10.1063/1.1491610  0.692
2002 Zink BL, Revaz B, Sappey R, Hellman F. Thin film microcalorimeter for heat capacity measurements in high magnetic fields Review of Scientific Instruments. 73: 1841. DOI: 10.1063/1.1461874  0.699
2002 Kim D, Zink BL, Hellman F, Coey JMD. Critical behavior of La0.75Sr0.25MnO3 Physical Review B - Condensed Matter and Materials Physics. 65: 2144241-2144247.  0.654
2002 Revaz B, Cyrille MC, Zink BL, Schuller IK, Hellman F. Enhancement of the electronic contribution to the low-temperature specific heat of an Fe/Cr magnetic multilayer Physical Review B - Condensed Matter and Materials Physics. 65: 944171-944178.  0.711
2001 Cross JO, Newville M, Hellman F, Rooney PW, Shapiro AL, Harris VG. Growth induced magnetic and chemical anisotropy in CoPt3 alloy films. Journal of Synchrotron Radiation. 8: 880-2. PMID 11512965 DOI: 10.1107/S0909049501000309  0.379
2001 Vasumathi D, Maranville BB, Hellman F. Ion-beam-assisted growth of CoPt3 films Applied Physics Letters. 79: 2782-2784. DOI: 10.1063/1.1412430  0.69
2001 Vasumathi D, Shapiro AL, Maranville BB, Hellman F. Growth-induced perpendicular magnetic anisotropy and clustering in NixPt1-x alloys Journal of Magnetism and Magnetic Materials. 223: 221-232. DOI: 10.1016/S0304-8853(00)01275-0  0.712
2000 Hellman F, Queen DR, Potok RM, Zink BL. Spin-glass freezing and RKKY interactions near the metal-insulator transition in amorphous Gd-Si alloys Physical Review Letters. 84: 5411-4. PMID 10990956 DOI: 10.1103/Physrevlett.84.5411  0.709
2000 Teizer W, Hellman F, Dynes RC. Magnetic field induced insulator to metal transition in amorphous-GdxSi1-x Solid State Communications. 114: 81-86. DOI: 10.1016/S0038-1098(00)00007-7  0.441
1999 Hellman F, Shapiro AL, Abarra EN, Rooney PW, Tran MQ. Magnetic Anisotropy and Coercivity in Magneto-Optical Recording Materials Journal of the Magnetics Society of Japan. 23. DOI: 10.3379/Jmsjmag.23.S1_79  0.447
1999 Zink BL, Janod E, Allen K, Hellman F. Large magnetic entropy in giant magnetoresistive amorphous gadolinium silicon Physical Review Letters. 83: 2266-2269. DOI: 10.1103/Physrevlett.83.2266  0.725
1999 Shapiro AL, Rooney PW, Tran MQ, Hellman F, Ring KM, Kavanagh KL, Rellinghaus B, Weller D. Growth-induced magnetic anisotropy and clustering in vapor-deposited Co-Pt alloy films Physical Review B - Condensed Matter and Materials Physics. 60: 12826-12836. DOI: 10.1103/Physrevb.60.12826  0.462
1999 Xiong P, Zink BL, Applebaum SI, Hellman F, Dynes RC. Low-temperature magnetoresistance in insulating a-Gd x Si 1-x alloys Physical Review B. 59. DOI: 10.1103/Physrevb.59.R3929  0.364
1999 Hellman F, Shapiro AL, Abarra EN, Robinson RA, Hjelm RP, Seeger PA, Rhyne JJ, Suzuki JI. Long ferromagnetic correlation length in amorphousTbFe2 Physical Review B. 59: 11408-11417. DOI: 10.1103/Physrevb.59.11408  0.441
1999 Allen K, Hellman F. Specific heat of endohedral and higher fullerene thin films Journal of Chemical Physics. 111: 5291-5294. DOI: 10.1063/1.479787  0.32
1999 Hellman F, Messer M, Abarra EN. Coercivity in amorphous Tb–Fe alloys Journal of Applied Physics. 86: 1047-1052. DOI: 10.1063/1.370845  0.473
1999 Shapiro AL, Vajk O, Hellman F, Ring KM, Kavanagh KL. Suppression of growth-induced perpendicular magnetic anisotropy in Co-Pt alloys by trace amounts of Si Applied Physics Letters. 75: 4177-4179. DOI: 10.1063/1.125574  0.415
1999 Hellman F, Messer M, Abarra EN. Coercivity in amorphous Tb-Fe alloys Journal of Applied Physics. 86: 1047-1052.  0.329
1999 Xiong P, Zink BL, Applebaum SI, Hellman F, Dynes RC. Low-temperature magnetoresistance in insulating a-GAxSi1-x alloys Physical Review B - Condensed Matter and Materials Physics. 59.  0.689
1999 Hellman F, Shapiro AL, Abarra EN, Robinson RA, Hjelm RP, Seeger PA, Rhyne JJ, Suzuki JI. Long ferromagnetic correlation length in amorphous TbFe2 Physical Review B - Condensed Matter and Materials Physics. 59: 11408-11417.  0.335
1998 Shapiro AL, Hellman F, Fitzsimmons MR. Magnetic Order of Co 0.1 Pt 0.9 in Proximity of CoPt 3 Mrs Proceedings. 517. DOI: 10.1557/Proc-517-311  0.38
1998 Hellman F, Abarra EN, Shapiro AL, Van Dover RB. Specific heat of amorphous rare-earth-transition-metal films Physical Review B - Condensed Matter and Materials Physics. 58: 5672-5683. DOI: 10.1103/Physrevb.58.5672  0.536
1997 Hellman F, Tran MQ, Gebala AE, Wilcox EM. Giant magnetoresistance in amorphous magnetic rare-earth silicon alloys (abstract) Journal of Applied Physics. 81: 5537-5537. DOI: 10.1063/1.364596  0.437
1997 Shapiro AL, Rooney PW, Tran MQ, Hellman F. Surface-induced clustering in vapor deposited Co1−xPtx and Ni1−xPtx films (abstract) Journal of Applied Physics. 81: 5053-5053. DOI: 10.1063/1.364505  0.413
1996 Hellman F, Tran MQ, Gebala AE, Wilcox EM, Dynes RC. Metal-Insulator Transition and Giant Negative Magnetoresistance in Amorphous Magnetic Rare Earth Silicon Alloys. Physical Review Letters. 77: 4652-4655. PMID 10062592 DOI: 10.1103/Physrevlett.77.4652  0.449
1996 Abarra EN, Takano K, Hellman F, Berkowitz AE. Thermodynamic measurements of magnetic ordering in antiferromagnetic superlattices Physical Review Letters. 77: 3451-3454. DOI: 10.1103/Physrevlett.77.3451  0.413
1996 Tran MQ, Shapiro AL, Rooney PW, Hellman F. Surface‐induced miscibility gap in vapor deposited Co1−xPtx (abstract) Journal of Applied Physics. 79: 5854-5854. DOI: 10.1063/1.362147  0.479
1996 Abarra EN, Takano K, Hellman F, Berkowitz AE. Heat capacity measurements of NiO/CoO superlattices (invited) (abstract) Journal of Applied Physics. 79: 5919. DOI: 10.1063/1.361838  0.458
1996 Hellman F, Tran MQ, Gebala AE, Wilcox EM, Dynes RC. Metal-insulator transition and giant negative magnetoresistance in amorphous magnetic rare earth silicon alloys Physical Review Letters. 77: 4652-4655.  0.337
1995 Ring KM, Shapiro AL, Deng F, Goldman RS, Spada F, Hellman F, Cheeks TL, Kavanagh KL, Suzuki T. Structural and magnetic characterization of Bi-substituted garnet on Si and GaAs Materials Research Society Symposium - Proceedings. 384: 41-46. DOI: 10.1557/Proc-384-41  0.473
1995 Rooney PW, Shapiro AL, Tran MQ, Hellman F. Evidence of a surface-mediated magnetically induced miscibility gap in Co-Pt alloy thin films Physical Review Letters. 75: 1843-1846. DOI: 10.1103/PhysRevLett.75.1843  0.349
1994 Harris VG, Elam WT, Koon NC, Hellman F. Deposition-temperature dependence of structural anisotropy in amorphous Tb-Fe films. Physical Review. B, Condensed Matter. 49: 3637-3640. PMID 10011244 DOI: 10.1103/Physrevb.49.3637  0.476
1994 Harris VG, Elam WT, Koon NC, Hellman F. Deposition-temperature dependence of structural anisotropy in amorphous Tb-Fe films Physical Review B. 49: 3637-3640. DOI: 10.1103/PhysRevB.49.3637  0.38
1994 Abarra EN, Takano K, Hellman F, Berkowitz AE. Heat capacity measurements of antiferromagnetic CoO/NiCoO superlattices (abstract) Journal of Applied Physics. 76: 6292-6292. DOI: 10.1063/1.358311  0.456
1994 Denlinger DW, Abarra EN, Allen K, Rooney PW, Messer MT, Watson SK, Hellman F. Thin film microcalorimeter for heat capacity measurements from 1.5 to 800 K Review of Scientific Instruments. 65: 946-959. DOI: 10.1063/1.1144925  0.429
1994 Hellman F. Surface-induced ordering: A model for vapor-deposition growth of amorphous materials Applied Physics Letters. 64: 1947-1949. DOI: 10.1063/1.111751  0.406
1993 Rooney PW, Hellman F. Kinetic simulation of vapor deposition and growth Physical Review B. 48: 3079-3084. DOI: 10.1103/Physrevb.48.3079  0.362
1993 Hellman F, Rooney PW, Gyorgy EM. Macroscopic magnetic anisotropy and the vapor deposition process in amorphous RE‐TM alloys (abstract) Journal of Applied Physics. 73: 5793-5793. DOI: 10.1063/1.353577  0.46
1993 Harris VG, Hellman F, Elam WT, Koon NC. Substrate temperature effect on the structural anisotropy in amorphous Tb-Fe films Journal of Applied Physics. 73: 5785-5787. DOI: 10.1063/1.353572  0.421
1992 Hellman F, Gyorgy EM, Dynes RC. Quasi-2D behavior in bulk isotropic type-II superconductors: Shape effects. Physical Review Letters. 68: 867-870. PMID 10046013 DOI: 10.1103/Physrevlett.68.867  0.358
1992 Hellman F, Gyorgy EM. Growth-induced magnetic anisotropy in amorphous Tb-Fe Physical Review Letters. 68: 1391-1394. DOI: 10.1103/Physrevlett.68.1391  0.431
1991 Hellman F. Vapor-deposition-induced magnetic anisotropy in amorphous RE-TM alloys (invited) (abstract) Journal of Applied Physics. 70: 5780. DOI: 10.1063/1.350158  0.46
1991 Hellman F, Gyorgy EM, Dover RBv, Felder RJ. Anomalous composition dependence of anisotropy in amorphous Tb‐Fe and Ho‐Fe (abstract) Journal of Applied Physics. 69: 5466-5466. DOI: 10.1063/1.348011  0.437
1991 Hellman F. Measurement of magnetic anisotropy of ferrimagnets near compensation Applied Physics Letters. 59: 2757-2759. DOI: 10.1063/1.105879  0.413
1990 Gyorgy EM, Van Dover RB, Schneemeyer LF, White AE, O'Bryan HM, Felder RJ, Waszczak JV, Rhodes WW, Hellman F. Sharp angular sensitivity of pinning due to twin boundaries in Ba 2YCu3O7 Applied Physics Letters. 56: 2465-2467. DOI: 10.1063/1.103257  0.312
1989 Hellman F, Van Dover RB, Nakahara S, Gyorgy EM. Magnetic and structural investigation of the composition dependence of the local order in amorphous Tb-Fe Physical Review B. 39: 10591-10605. DOI: 10.1103/Physrevb.39.10591  0.429
1989 Hellman F, Nakahara S, Frankenthal RP, Van Dover RB, Siconolfi DJ, Gyorgy EM. Composition and deposition temperature dependence of the structure of oxidized thin-film amorphous Tb-Fe Journal of Applied Physics. 65: 2847-2851. DOI: 10.1063/1.342724  0.377
1989 Hellman F, Van Dover RB, Nakahara S, Gyorgy EM. Changes in the local structure of amorphous Tb-Fe observed by magnetic anisotropy measurements Journal of Magnetism and Magnetic Materials. 81: 234-238. DOI: 10.1016/0304-8853(89)90256-4  0.481
1988 Hellman F, Tung RT. Surface structure of thin epitaxial CoSi2 grown on Si(111) Physical Review B. 37: 10786-10794. DOI: 10.1103/Physrevb.37.10786  0.345
1988 Dillon JF, Gyorgy EM, Hellman F, Walker LR, Fulton RC. Use of the longitudinal magneto-optical Kerr effect to study nonmagnetic/magnetic bilayers Journal of Applied Physics. 64: 6098-6100. DOI: 10.1063/1.342105  0.391
1988 Hellman F, Gyorgy EM, Johnson DW, O’Bryan HM, Sherwood RC. Erratum: ‘‘Levitation of a magnet over a flat type II superconductor’’ [J. Appl. Phys. 63, 447 (1988)] Journal of Applied Physics. 63: 5196-5196. DOI: 10.1063/1.341180  0.307
1988 Hilleke RO, Felcher GP, Hellman F, Gyorgy EM. Magnetic profile in Tb‐Fe and Tb‐Fe/Ni‐Fe bilayer films (abstract) Journal of Applied Physics. 63: 3247. DOI: 10.1063/1.340827  0.335
1988 Hellman F, Gyorgy EM, Johnson DW, O'Bryan HM, Sherwood RC. Levitation of a magnet over a flat type II superconductor Journal of Applied Physics. 63: 447-450. DOI: 10.1063/1.340262  0.361
1987 Hellman F, Geballe TH. Specific heat of thin-film A15 superconductors: An anomalous inhomogeneity discovered. Physical Review. B, Condensed Matter. 36: 107-120. PMID 9942032 DOI: 10.1103/Physrevb.36.107  0.601
1987 Tung RT, Hellman F, Gibson JM, Boone T. Growth of Single Crystal type A and type B Co x Ni 1-x Si 2 Layers on Si(111) Mrs Proceedings. 91: 451. DOI: 10.1557/Proc-91-451  0.306
1987 Hellman F. Surface-to-surface segregation during growth of polycrystalline thin films Applied Physics Letters. 51: 948-950. DOI: 10.1063/1.98811  0.317
1987 Hellman F, Van Dover RB, Gyorgy EM. Unexpected unidirectional anisotropy in amorphous Tb-Fe/Ni-Fe-Mo bilayer films Applied Physics Letters. 50: 296-298. DOI: 10.1063/1.98230  0.35
1987 Hellman F, Dover RBv, Gyorgy EM. Direction of the easy axis in amorphous Tb‐Fe (abstract) Journal of Applied Physics. 61: 3249-3249. DOI: 10.1063/1.338918  0.445
1987 Gallagher PK, Gyorgy EM, Schrey F, Hellman F. The use of thermomagnetometry to follow reactions of thin films Thermochimica Acta. 121: 231-239. DOI: 10.1016/0040-6031(87)80175-2  0.409
1986 Hellman F, Hong M, Hull GW, Geballe TH. Study of liquid-infiltrated Nb-Sn superconducting composite wire by specific-heat measurements Journal of Applied Physics. 60: 3978-3981. DOI: 10.1063/1.337520  0.526
1986 Hellman F, Talvacchio J, Geballe TH, Marshall AF. A new look at the growth of thin films of Nb-Sn Advances in Cryogenic Engineering. 32: 593-602. DOI: 10.1007/978-1-4613-9871-4_71  0.422
1985 Hong M, Maher DM, Ellington MB, Hellman F, Geballe TH, Ekin JW, Holthuis JT. Further investigations of the solid-liquid reaction and high-field critical current density in liquid-infiltrated Nb-Sn superconductors Ieee Transactions On Magnetics. 21: 771-774. DOI: 10.1109/Tmag.1985.1063788  0.345
1984 Marshall AF, Hellman F, Oh B. Epitaxy of Nb 3 Sn Films on Sapphire Mrs Proceedings. 37: 517. DOI: 10.1557/Proc-37-517  0.409
1984 Rudman DA, Hellman F, Hammond RH, Beasley MR. A15 Nb-Sn tunnel junction fabrication and properties Journal of Applied Physics. 55: 3544-3553. DOI: 10.1063/1.332944  0.412
1981 Early SR, Hellman F, Marshall J, Geballe TH. A silicon on sapphire thermometer for small sample low temperature calorimetry Physica B+C. 107: 327-328. DOI: 10.1016/0378-4363(81)90469-1  0.548
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