Thin Films >10T Shape Resonances C 至3.*xz Fluctuations? Charge neutrality? Substrate? HICKNESS OF SLAB Wu)- Blatt, Thompson, Phys. Lett. 5, 6 (1963) Yu, et al. Rev. B 14, 996 (1976 Bermudez. AGG,Phys.Rev.B89,064508(2014)89,024510(2014)
Shape Resonances Blatt, Thompson, Phys. Lett. 5, 6 (1963) Thin Films Fluctuations? Charge neutrality? Substrate? >10Tc ! Bermudez, AGG, Phys. Rev. B 89, 064508 (2014) 89, 024510 (2014) Yu, et al.,Rev. B 14, 996 (1976)
Thinner (a) BISMUTH Smoother Pb 4.36A Disordered 00.050.10.150.20.250.3 BKT 1/d(A) Transition (b) R N S R q (anti)Vortex 7427A unbinding Bi. LLl 121620 T(K) (k9) A.M. Goldman et al PRL622180(1989) PRB475931(1993)
A.M. Goldman et al. PRL 62 2180 (1989) PRB 47 5931 (1993) Smoother Thinner Disordered Transition 𝑅𝑁 > 𝑅𝑞 BKT (anti)Vortex unbinding
2000 Atomic scale control 7.0 65 6.0 6.0 5.5 5.5 g50} 5.0 Pb 4.5 20 4.5 4.0 4.0 3.5 556057075 35 3.0 12345678910111213141516 141618202224262 Thickness (ML) Thickness N Shih et al., Science 324, 1314(2009) Xue et al., Science 306, 1915(2004) Size effects but not higher Tc
Shih et al., Science 324, 1314 (2009) Xue et al., Science 306, 1915 (2004) 2000 Atomic scale control Pb Size effects but not higher Tc
nature 3.4K LETTERS PUBLSHED ONLINE: 10 JANUARY 2010 I DO1: 10. 1038/NPHYS1499 TVSICS 3.10K 3.07 Superconductivity in one-atomic-layer metal films 28k. grown on Si(111) ⌒1261K 236K 207K1 Epitaxial 175K growth 081K 041K 4-3-2-101234 STM Bias(mv) 0.60 0 V7xV3 In 0.30 Data 0.20 BCSthe Impurities? 010}7=318K Xue 00.51015202.5303.5 Tsing T(K)
STM Epitaxial growth Impurities? Xue Tsinghua
LaAlO3/SrTiO3 interface =2 High-Tc copper oxide LaAlo-srIno g AFM V11y110 -300-200-100 200 00.020.04 0.1 0.2 Triscone et al. Nature 456 624 (2008) Mannhartet al Nature 502, 528(2013) Localization Control Exotic Quantum Tunability Matter opology
LaAlO3 /SrTiO3 interface Triscone et al. , Nature 456 624 (2008) Control Mannhart et al., Nature 502, 528 (2013) Tunability Localization Exotic Quantum Matter Topology