Garcia-Garcia, Antonio and Urbina, Juan Diego and Richter, Klaus and Yuzbashyan, Emil and Altshuler, Boris (2011) BCS superconductivity in metallic nanograins: Finite-size corrections, low-energy excitations, and robustness of shell effects. Physical Review B (PRB) 83, 014510.
We combine the BCS self-consistency condition, a semiclassical expansion for the spectral density and interaction matrix elements to describe analytically how the superconducting gap depends on the size and shape of a two- and three-dimensional superconducting grain. In chaotic grains mesoscopic fluctuations of the matrix elements lead to a smooth dependence of the order parameter on the ...
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|Date:||20 January 2011|
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter|
|Projects:||GRK 638 Nonlinearity and nonequilibrium in condensed matter|
|Keywords:||superconductivity, shell effects, semiclassical methods, mesoscopic physics|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Partially|
|Deposited On:||05 Mar 2010 07:20|
|Last Modified:||13 Mar 2014 13:02|