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James Valles, jr. - Publications

Affiliations: 
1989-1992 University of Oregon, Eugene, OR, United States 
 1992- Physics Brown University, Providence, RI 
Area:
condensed matter physics, biophysics
Website:
https://vivo.brown.edu/display/jvallesj
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61 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
2019 Yang C, Liu Y, Wang Y, Feng L, He Q, Sun J, Tang Y, Wu C, Xiong J, Zhang W, Lin X, Yao H, Liu H, Fernandes G, Xu J, ... Valles JM, et al. Intermediate bosonic metallic state in the superconductor-insulator transition. Science (New York, N.Y.). PMID 31727857 DOI: 10.1126/Science.Aax5798  0.327
2019 Zhang X, Joy JC, Wu C, Kim JH, Xu JM, Valles JM. Quasiparticle Screening near a Bosonic Superconductor-Insulator Transition Revealed by Magnetic Impurity Doping. Physical Review Letters. 122: 157002. PMID 31050501 DOI: 10.1103/PhysRevLett.122.157002  0.384
2017 Zhang X, Joy J, Zhao C, Kim JH, Fernandes G, Xu J, Valles J. Evaporating Metal Nanocrystal Arrays. Nanotechnology. PMID 28094238 DOI: 10.1088/1361-6528/aa59c8  0.352
2014 Hollen SM, Fernandes GE, Xu JM, Valles JM. Fate of the Bose insulator in the limit of strong localization and low Cooper-pair density in ultrathin films Physical Review B - Condensed Matter and Materials Physics. 90. DOI: 10.1103/PhysRevB.90.140506  0.347
2013 Hollen SM, Shainline J, Xu JM, Valles JM. Cooper pair insulator phase induced in amorphous Pb0.9Bi 0.1 thin films Physica C: Superconductivity and Its Applications. 486: 23-25. DOI: 10.1016/j.physc.2012.12.011  0.357
2012 Stewart MD, Valles JM. Evidence of Cooper Pairs on the Insulating Side of the Superconductor-Insulator Transition Conductor-Insulator Quantum Phase Transitions. DOI: 10.1093/acprof:oso/9780199592593.003.0013  0.393
2012 Hollen SM, Valles JM. Cooper pair islanding model of insulating nanohoneycomb films Journal of Physics: Conference Series. 376. DOI: 10.1088/1742-6596/376/1/012002  0.378
2011 Hollen SM, Nguyen HQ, Rudisaile E, Stewart MD, Shainline J, Xu JM, Valles JM. Cooper-pair insulator phase in superconducting amorphous Bi films induced by nanometer-scale thickness variations Physical Review B - Condensed Matter and Materials Physics. 84. DOI: 10.1103/PhysRevB.84.064528  0.403
2009 Nguyen HQ, Hollen SM, Stewart MD, Shainline J, Yin A, Xu JM, Valles JM. Observation of Giant Positive Magnetoresistance in a Cooper Pair Insulator Physical Review Letters. 103. DOI: 10.1103/PhysRevLett.103.157001  0.346
2009 Stewart MD, Nguyen HQ, Hollen SM, Yin A, Xu JM, Valles JM. Enhanced suppression of superconductivity in amorphous films with nano-scale patterning Physica C: Superconductivity and Its Applications. 469: 774-777. DOI: 10.1016/j.physc.2009.04.009  0.376
2008 Stewart MD, Yin A, Xu JM, Valles JM. Magnetic-field-tuned superconductor-to-insulator transitions in amorphous Bi films with nanoscale hexagonal arrays of holes Physical Review B - Condensed Matter and Materials Physics. 77. DOI: 10.1103/PhysRevB.77.140501  0.352
2007 Stewart MD, Yin A, Xu JM, Valles JM. Superconducting pair correlations in an amorphous insulating nanohoneycomb film. Science (New York, N.Y.). 318: 1273-5. PMID 18033876 DOI: 10.1126/science.1149587  0.411
2006 Barber RP, Hsu SY, Valles JM, Dynes RC, Glover RE. Negative magnetoresistance, negative electroresistance, and metallic behavior on the insulating side of the two-dimensional superconductor-insulator transition in granular Pb films Physical Review B - Condensed Matter and Materials Physics. 73. DOI: 10.1103/Physrevb.73.134516  0.646
2005 Pavenayotin N, Stewart MD, Valles JM, Yin A, Xu JM. Spontaneous formation of ordered nanocrystal arrays in films evaporated onto nanopore array substrates Applied Physics Letters. 87: 1-3. DOI: 10.1063/1.2130726  0.345
2005 Long Z, Valles JM. Early stage morphology of Quench condensed Ag, Pb and Pb/Ag hybrid films Journal of Low Temperature Physics. 139: 429-438. DOI: 10.1007/s10909-005-4732-3  0.367
2004 Long Z, Stewart MD, Kouh T, Valles JM. Subgap density of states in superconductor-normal metal bilayers in the cooper limit. Physical Review Letters. 93: 257001. PMID 15697929 DOI: 10.1103/Physrevlett.93.257001  0.653
2003 Kouh T, Valles JM. Deviations from mean-field behavior in disordered nanoscale superconductor-normal-metal-superconductor arrays Physical Review B - Condensed Matter and Materials Physics. 67: 1405061-1405064.  0.628
2001 Valles JM, Chervenak JA, Hsu S, Kouh T. Fluctuation effects in high sheet resistance superconducting films Physics-Uspekhi. 44: 104-108. DOI: 10.1070/1063-7869/44/10S/S23  0.699
2000 Chervenak JA, Valles JM. Absence of a zero-temperature vortex solid phase in strongly disordered superconducting Bi films Physical Review B - Condensed Matter and Materials Physics. 61: R9245-R9248.  0.305
1999 Ekinci KL, Valles JM. Morphology of quench condensed Pb films near the insulator to metal transition Physical Review Letters. 82: 1518-1521. DOI: 10.1103/Physrevlett.82.1518  0.681
1999 Chervenak JA, Valles JM. Observation of critical amplitude fluctuations near the two-dimensional superconductor-insulator transition Physical Review B - Condensed Matter and Materials Physics. 59: 11209-11212.  0.336
1998 Ekinci KL, Valles JM. Thickness dependence of the morphology of ultrathin quench condensed gold films Physical Review B - Condensed Matter and Materials Physics. 58: 7347-7350. DOI: 10.1103/Physrevb.58.7347  0.672
1998 Ekinci KL, Valles JM. Formation of polycrystalline structure in metallic films in the early stages of zone I growth Acta Materialia. 46: 4549-4557. DOI: 10.1016/S1359-6454(98)00145-1  0.678
1998 Hsu SY, Chervenak JA, Valles JM. Tunneling measurements of fluctuation effects near the superconductor to insulator transition Journal of Physics and Chemistry of Solids. 59: 2065-2067.  0.315
1997 Ekinci KL, Valles JM. Cryostat for in situ scanning tunneling microscopy studies of film growth at low temperatures Review of Scientific Instruments. 68: 4152-4154. DOI: 10.1063/1.1148360  0.666
1996 Chervenak JA, Valles JM. Evidence for a quantum-vortex-liquid regime in ultrathin superconducting films Physical Review B - Condensed Matter and Materials Physics. 54: R15649-R15652.  0.306
1995 Hsu SY, Chervenak JA, Valles JM. Magnetic field enhanced order parameter amplitude fluctuations in ultrathin films near the superconductor-insulator transition Physical Review Letters. 75: 132-135. DOI: 10.1103/PhysRevLett.75.132  0.315
1995 Chervenak JA, Valles JM. Pair breaking by magnetic impurities in ultrathin superconducting films: Tc degradation mechanisms in disordered superconductors Physical Review B. 51: 11977-11980. DOI: 10.1103/PhysRevB.51.11977  0.347
1995 Valles JM, Hsu SY, Chervenak JA. Electron tunneling spectroscopy near the magnetic field tuned superconductor to insulator transition Journal of Physics and Chemistry of Solids. 56: 1809.  0.307
1994 Hsu SY, Valles JM. Tunneling studies of vortices in high-sheet-resistance granular superconducting films Physical Review B. 49: 6416-6419. DOI: 10.1103/PhysRevB.49.6416  0.356
1994 Hsu SY, Valles JM. Electron tunneling into strongly disordered films: The influence of structure on electron-electron interactions Physical Review B. 49: 16600-16604. DOI: 10.1103/PhysRevB.49.16600  0.397
1994 Hsu Sp, Chervenak JA, Valles JM. Planar tunnel junction studies of quasiparticle bound states in vortices in ultrathin films Applied Superconductivity. 2: 715-720. DOI: 10.1016/0964-1807(94)90071-X  0.404
1994 Hsu SY, Valles JM, Adams PW, Dynes RC. The proximity effect in utralthin granular Pb films Physica B: Physics of Condensed Matter. 194: 2337-2338. DOI: 10.1016/0921-4526(94)91668-3  0.653
1994 Hsu SY, Valles JM. The Coulomb anomaly in strongly disordered films Physica B: Physics of Condensed Matter. 194: 1117-1118. DOI: 10.1016/0921-4526(94)90888-5  0.4
1994 Valles JM, Hsu SY, Dynes RC, Garno JP. Electron tunneling studies of ultrathin films near the superconductor-to-insulator transition Physica B: Physics of Condensed Matter. 197: 522-529. DOI: 10.1016/0921-4526(94)90252-6  0.66
1993 Hsu SY, Valles JM. Magnetic-field-induced pair-breaking effects in granular Pb films near the superconductor-to-insulator transition Physical Review B. 48: 4164-4167. DOI: 10.1103/PhysRevB.48.4164  0.353
1993 Hsu SY, Valles JM. Perpendicular upper critical field of granular Pb films near the superconductor-to-insulator transition Physical Review B. 47: 14334-14337. DOI: 10.1103/PhysRevB.47.14334  0.417
1992 Valles JM, Dynes RC, Garno JP. Electron tunneling determination of the order-parameter amplitude at the superconductor-insulator transition in 2D. Physical Review Letters. 69: 3567-3570. PMID 10046854 DOI: 10.1103/PhysRevLett.69.3567  0.537
1991 Valles JM, Dynes RC, Cucolo AM, Gurvitch M, Schneemeyer LF, Garno JP, Waszczak JV. Electron tunneling into single crystals of YBa2Cu3O7- delta. Physical Review. B, Condensed Matter. 44: 11986-11996. PMID 9999335 DOI: 10.1103/Physrevb.44.11986  0.515
1991 Valles JM, Dynes RC, Cucolo AM, Gurvitch M, Schneemeyer LF, Garno JP, Waszczak JV. Electron tunneling into single crystals of YBa2Cu3O7- Physical Review B. 44: 11986-11996. DOI: 10.1557/Proc-169-983  0.512
1991 Cucolo AM, Dynes RC, Valles JM, Schneemeyer LF. Planar tunnel junctions on 90 K and 60 K YBCO single crystals. Superconducting and normal state properties Physica C: Superconductivity and Its Applications. 179: 69-74. DOI: 10.1016/0921-4534(91)90012-N  0.524
1990 Valles JM, Dynes RC. Superconductivity and Tunneling Spectroscopy in Granular and Homogeneous Quench Condensed thin Films Mrs Proceedings. 195. DOI: 10.1557/PROC-195-375  0.416
1990 Hess HF, Robinson RB, Dynes RC, Valles JM, Waszczak JV. Spectroscopic and spatial characterization of superconducting vortex core states with a scanning tunneling microscope Journal of Vacuum Science & Technology a: Vacuum, Surfaces, and Films. 8: 450-454. DOI: 10.1116/1.577016  0.532
1989 Gurvitch M, Valles JM, Cucolo AM, Dynes RC, Garno JP, Schneemeyer LF, Waszczak JV. Reproducible tunneling data on chemically etched single crystals of YBa2Cu3O7. Physical Review Letters. 63: 1008-1011. PMID 10041245 DOI: 10.1103/PhysRevLett.63.1008  0.494
1989 Hess HF, Robinson RB, Dynes RC, Valles JM, Waszczak JV. Scanning-tunneling-microscope observation of the Abrikosov flux lattice and the density of states near and inside a fluxoid. Physical Review Letters. 62: 214-216. PMID 10039952 DOI: 10.1103/Physrevlett.62.214  0.554
1989 Valles JM, Dynes RC, Garno JP. Temperature dependence of the two-dimensional electronic density of states in disordered metal films. Physical Review. B, Condensed Matter. 40: 7590-7593. PMID 9991185 DOI: 10.1103/PhysRevB.40.7590  0.628
1989 Valles JM, Dynes RC, Garno JP. Superconductivity and the electronic density of states in disordered two-dimensional metals. Physical Review. B, Condensed Matter. 40: 6680-6683. PMID 9991039 DOI: 10.1103/Physrevb.40.6680  0.595
1989 Valles JM, White AE, Short KT, Dynes RC, Garno JP, Levi AF, Anzlowar M, Baldwin K. Ion-beam-induced metal-insulator transition in YBa2Cu3O7- delta : A mobility edge. Physical Review. B, Condensed Matter. 39: 11599-11602. PMID 9947991 DOI: 10.1103/Physrevb.39.11599  0.583
1989 Valles JM, White AE, Short KT, Dynes RC, Garno JP, Levi AFJ, Anzlowar M, Baldwin K. Ion-beam-induced metal-insulator transition in YBa2Cu3O7-: A mobility edge Physical Review B. 39: 11599-11602. DOI: 10.1103/PhysRevB.39.11599  0.304
1989 Gurvitch M, Valles JM, Dynes RC, Cucolo AM, Schneemeyer LF. Reproducibility in tunneling achieved through liquid etching of YBCO Physica C: Superconductivity and Its Applications. 162: 1067-1068. DOI: 10.1016/0921-4534(89)90596-0  0.552
1989 Cucolo AM, Valles JM, Dynes RC, Gurvitch M, Phillips JM, Garno JP. Low leakage tunnel junctions on liquid etched thin films of Y1Ba2Cu3O7 Physica C: Superconductivity and Its Applications. 161: 351-353. DOI: 10.1016/0921-4534(89)90347-X  0.633
1989 White AE, Short KT, Garno JP, Valles JM, Dynes RC, Schneemeyer LF, Waszczak J, Levi AFJ, Anzlowar M, Baldwin KW. Implantation, damage, and regrowth of high Tc superconductors Nuclear Inst. and Methods in Physics Research, B. 37: 923-929. DOI: 10.1016/0168-583X(89)90328-5  0.583
1988 Valles JM, Higley RH, Johnson BR, Hallock RB. Nuclear magnetic susceptibility measurements of 3He Physical Review Letters. 60: 428-431. PMID 10038544 DOI: 10.1103/Physrevlett.60.428  0.405
1987 Valles JM, Hallock RB. Sensitivity of third sound to the 3He effective mass in 3He Physical Review. B, Condensed Matter. 36: 8772-8773. PMID 9942702  0.405
1987 Valles JM, Higley RH, Johnson BR, Hallock RB. Third sound in dilute 3he-4he mixture films adsorbed on nuclepore Japanese Journal of Applied Physics. 26: 287-288. DOI: 10.7567/Jjaps.26S3.287  0.499
1987 Valles JM, Johnson BR, Higley RH, Hallock RB. Spin-echo measurements of the 3he magnetization in a 2-d fermi system of 3he in 3he舑4he mixture films Japanese Journal of Applied Physics. 26: 259-260. DOI: 10.7567/Jjaps.26S3.259  0.552
1987 Valles JM, Heinrichs RM, Hallock RB. Erratum:−43He mixture films: TheHe4coverage dependence of theHe3binding energy Physical Review Letters. 58: 1797-1797. DOI: 10.1103/Physrevlett.58.1797  0.564
1987 Valles JM, Hallock RB. Sensitivity of third sound to the He3 effective mass in He3-He4 superfluid mixture films Physical Review B. 36: 8772-8773. DOI: 10.1103/PhysRevB.36.8772  0.526
1986 Valles JM, Heinrichs RM, Hallock RB. 3He-4He mixture films: The 4He coverage dependence of the 3He binding energy. Physical Review Letters. 56: 1704-1707. PMID 10032747 DOI: 10.1103/Physrevlett.56.1704  0.546
1985 Smith DT, Valles JM, Hallock RB. Comment on fractal aggregates in sputter-deposited films. Physical Review Letters. 54: 2646. PMID 10031399 DOI: 10.1103/PhysRevLett.54.2646  0.558
1985 Valles JM, Smith DT, Hallock RB. Third sound in 4He adsorbed on Nuclepore. Physical Review Letters. 54: 1528-1531. PMID 10031062 DOI: 10.1103/PhysRevLett.54.1528  0.394
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