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Scaling Laws for Thin Films near the Superconducting-to-Insulating Transition.


ABSTRACT: We propose a Lagrangian function, which combines Landau-Ginzburg term and Chern-Simons term, for describing the competition between disorder and superconductivity. To describe the normal-to-superconducting transition in the thin superconducting films, we apply Wilson's renormalization group methods into this Lagrangian function. Finally, we obtain a scaling law between critical temperature (Tc), film thickness (d), sheet resistance of the film at the normal state (Rs), and number density of the electrons at the normal state (N). Such a scaling law is in agreement with recent experimental investigations [Ivry, Y. et al., Physical Review B 90, 214515 (2014)]. Our finding may have potential benefits for improving transition temperature Tc.

SUBMITTER: Tao Y 

PROVIDER: S-EPMC4814910 | biostudies-other | 2016 Mar

REPOSITORIES: biostudies-other

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