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

Nicholas P. Breznay, Karen Michaeli, Konstantin S. Tikhonov, Alexander M. Finkel'Stein, Mihir Tendulkar, Aharon Kapitulnik

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

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 c and magnetic fields well above the upper critical field H 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.

Original languageEnglish
Article number014514
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number1
DOIs
Publication statusPublished - 13 Jul 2012
Externally publishedYes

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