[PDF]     http://dx.doi.org/10.3952/lithjphys.52201

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 52, 8188 (2012)

A. Aharonya,b,*, O. Entin-Wohlmana,b,*, H. Bary-Sorokera, and Y. Imryc
aDepartment of Physics, Ben Gurion University, Beer Sheva 84105, Israel
E-mail: aaharony@bgu.ac.il
bIlse Katz Center for Meso- and Nano-Scale Science and Technology, Ben Gurion University, Beer Sheva 84105, Israel
cDepartment of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel

Received 28 February 2012; accepted 7 June 2012

The contributions of superconducting fluctuations to the specific heat of dirty superconductors are calculated, including quantum and classical corrections to the ‘usual’ leading Gaussian divergence. These additional terms modify the Ginzburg criterion, which is based on equating these fluctuation-generated contributions to the mean-field discontinuity in the specific heat, and set limits on its applicability for materials with a low transition temperature.
Keywords: dirty superconductors, Ginzburg criterion, superconducting fluctuations, specific heat
PACS: 74.40.-n, 74.20.De, 74.62.En
*Also at Tel Aviv University

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