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 and magnetic fields well above the upper critical field . 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.
- Received 3 November 2010
DOI:https://doi.org/10.1103/PhysRevB.86.014514
©2012 American Physical Society