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Hall conductivity dominated by fluctuations near the superconducting transition in disordered thin films

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Hall conductivity dominated by fluctuations near the superconducting transition in disordered thin films

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Author: Breznay, Nicholas; Michaeli, Karen; Tikhonov, Konstantin; Finkel'stein, Alexander; Tendulkar, Mihir; Kapitulnik, Aharon
Department: Massachusetts Institute of Technology. Dept. of Physics
Publisher: American Physical Society
Date Issued: 2012-07
Abstract:
We have studied the Hall effect in superconducting tantalum nitride films. We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T[subscript c] and magnetic fields well above the upper critical field H[subscript c2](0). This contribution arises from Aslamazov-Larkin superconducting fluctuations, and we find quantitative agreement between our data and recent theoretical analysis based on time-dependent Ginzburg-Landau theory.
URI: http://hdl.handle.net/1721.1/72405
ISSN: 1098-0121
1550-235X
Citation: Breznay, Nicholas et al. “Hall Conductivity Dominated by Fluctuations Near the Superconducting Transition in Disordered Thin Films.” Physical Review B 86.1 (2012). ©2012 American Physical Society
Version: Final published version
Terms of Use: Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Published As: http://dx.doi.org/10.1103/PhysRevB.86.014514
Journal: Physical Review B

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