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

Author(s)
Breznay, Nicholas P.; Michaeli, Karen; Tikhonov, Konstantin S.; Finkel’stein, Alexander M.; Tendulkar, Mihir; Kapitulnik, Aharon; ... Show more Show less
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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.
Date issued
2012-07
URI
http://hdl.handle.net/1721.1/72405
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review B
Publisher
American Physical Society
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
ISSN
1098-0121
1550-235X

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