Skvortsov M A, Feigel'man M V
L. D. Landau Institute for Theoretical Physics, Moscow 119334, Russia.
Phys Rev Lett. 2005 Jul 29;95(5):057002. doi: 10.1103/PhysRevLett.95.057002. Epub 2005 Jul 26.
We discuss the intrinsic inhomogeneities of superconductive properties of uniformly disordered thin films with a large dimensionless conductance g. It is shown that mesoscopic fluctuations, which usually contain a small factor 1/g, are crucially enhanced near the critical conductance g(cF) >> 1 where superconductivity is destroyed at T = 0 due to Coulomb suppression of the Cooper attraction. This leads to strong spatial fluctuations of the local transition temperature and thus to the percolative nature of the thermal superconductive transition.
我们讨论了具有大无量纲电导g的均匀无序薄膜超导特性的内在不均匀性。结果表明，通常包含小因子1/g的介观涨落在临界电导g(cF) >> 1附近显著增强，在该临界电导下，由于库仑对库珀吸引力的抑制，超导性在T = 0时被破坏。这导致局部转变温度出现强烈的空间涨落，进而导致热超导转变具有渗流性质。
