Physics – Condensed Matter – Superconductivity
Scientific paper
2012-03-28
Physics
Condensed Matter
Superconductivity
11 pages, 6 figures
Scientific paper
Near the superconducting phase transition, fluctuations significantly modify the electronic transport properties. Here we study the fluctuation corrections to the Hall conductivity in disordered films, extending previous derivations to a broader range of temperatures and magnetic fields, including the vicinity of the magnetic field induced quantum critical point. In the process, we found a new contribution to the Hall conductivity that was not considered before. Recently, our theory has been used to fit measurements of the Hall resistance in amorphous TaN films.
Finkel'stein Alexander M.
Michaeli Karen
Tikhonov Konstantin S.
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