Signature of Aslamazov-Larkin fluctuation Hall conductivity in Tantalum Nitride films above their superconducting transition temperature

ORAL

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 Tc and magnetic fields well above the upper critical field, Hc2(0). This contribution arises from Aslamazov-Larkin type superconducting fluctuations, and we find quantitative agreement between our data and theoretical analysis based on time dependent Ginzburg-Landau theory.

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Authors

  • Nicholas Breznay

  • Andreas Bill

    Photonics CoE, Sciprint.org, LLNL, OSU, Imperial College London, General Atomis, UCSD, University of Milan, Instituto Superior Technico, University of Alberta, US Dept. of Agriculture, Agriculture Research Service, Parlier, CA, Dept. of Chemistry, California State University, Fresno, Dept. of Physics, California State University, Fresno, Weizmann Institute of Science, Stanford University, University of Connecticut, Storrs, UC Irvine, University of Missouri-Kansas City, California Institute of Technology, Ulm University, TU Darmstadt, UC Berkeley, GSFC, University of Regenberg, Germany, Lawrence Livermore National Laboratory, Clarendon Laboratory, Oxford, University of California, Los Angeles, Gesellschaft fuer Schwerionenforschung (GSI), Laboratoire pour l'Utilisation des Lasers Intenses, PSFC, MIT, University of California, Santa Barbara, Process Measurements Division, National Institute of Standards and Technology, Gaithersburg, MD, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, Division of Chemistry, California Institute of Technology, Pasadena, CA, Department of Physics, Fars Science and Research Center, Islamic Azad University, Texas A\&M University-Commerce, California State University, Long Beach, Materials Department, University of California Santa Barbara

  • Andreas Bill

    Photonics CoE, Sciprint.org, LLNL, OSU, Imperial College London, General Atomis, UCSD, University of Milan, Instituto Superior Technico, University of Alberta, US Dept. of Agriculture, Agriculture Research Service, Parlier, CA, Dept. of Chemistry, California State University, Fresno, Dept. of Physics, California State University, Fresno, Weizmann Institute of Science, Stanford University, University of Connecticut, Storrs, UC Irvine, University of Missouri-Kansas City, California Institute of Technology, Ulm University, TU Darmstadt, UC Berkeley, GSFC, University of Regenberg, Germany, Lawrence Livermore National Laboratory, Clarendon Laboratory, Oxford, University of California, Los Angeles, Gesellschaft fuer Schwerionenforschung (GSI), Laboratoire pour l'Utilisation des Lasers Intenses, PSFC, MIT, University of California, Santa Barbara, Process Measurements Division, National Institute of Standards and Technology, Gaithersburg, MD, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, Division of Chemistry, California Institute of Technology, Pasadena, CA, Department of Physics, Fars Science and Research Center, Islamic Azad University, Texas A\&M University-Commerce, California State University, Long Beach, Materials Department, University of California Santa Barbara

  • Andreas Bill

    Photonics CoE, Sciprint.org, LLNL, OSU, Imperial College London, General Atomis, UCSD, University of Milan, Instituto Superior Technico, University of Alberta, US Dept. of Agriculture, Agriculture Research Service, Parlier, CA, Dept. of Chemistry, California State University, Fresno, Dept. of Physics, California State University, Fresno, Weizmann Institute of Science, Stanford University, University of Connecticut, Storrs, UC Irvine, University of Missouri-Kansas City, California Institute of Technology, Ulm University, TU Darmstadt, UC Berkeley, GSFC, University of Regenberg, Germany, Lawrence Livermore National Laboratory, Clarendon Laboratory, Oxford, University of California, Los Angeles, Gesellschaft fuer Schwerionenforschung (GSI), Laboratoire pour l'Utilisation des Lasers Intenses, PSFC, MIT, University of California, Santa Barbara, Process Measurements Division, National Institute of Standards and Technology, Gaithersburg, MD, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, Division of Chemistry, California Institute of Technology, Pasadena, CA, Department of Physics, Fars Science and Research Center, Islamic Azad University, Texas A\&M University-Commerce, California State University, Long Beach, Materials Department, University of California Santa Barbara

  • Andreas Bill

    Photonics CoE, Sciprint.org, LLNL, OSU, Imperial College London, General Atomis, UCSD, University of Milan, Instituto Superior Technico, University of Alberta, US Dept. of Agriculture, Agriculture Research Service, Parlier, CA, Dept. of Chemistry, California State University, Fresno, Dept. of Physics, California State University, Fresno, Weizmann Institute of Science, Stanford University, University of Connecticut, Storrs, UC Irvine, University of Missouri-Kansas City, California Institute of Technology, Ulm University, TU Darmstadt, UC Berkeley, GSFC, University of Regenberg, Germany, Lawrence Livermore National Laboratory, Clarendon Laboratory, Oxford, University of California, Los Angeles, Gesellschaft fuer Schwerionenforschung (GSI), Laboratoire pour l'Utilisation des Lasers Intenses, PSFC, MIT, University of California, Santa Barbara, Process Measurements Division, National Institute of Standards and Technology, Gaithersburg, MD, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, Division of Chemistry, California Institute of Technology, Pasadena, CA, Department of Physics, Fars Science and Research Center, Islamic Azad University, Texas A\&M University-Commerce, California State University, Long Beach, Materials Department, University of California Santa Barbara