Two band superconductivity in optimal doped Ca$_{10}$(Pt$_{3}$As$_{8})$(Fe$_{2}$As$_{2})_{5}$ superconductors revealed by anisotropic H$_{c2}$ measurement up to 65T

ORAL

Abstract

Anisotropic upper critical field, H$_{c2}$(T), has been determined using radio-frequency contactless penetration depth method in pulsed magnetic fields up to 65T for optimal Pt doped and La-doped Ca$_{10}$(Pt$_{3}$As$_{8})$(Fe$_{2}$As$_{2})_{5}$ single crystals with magnetic field applied parallel and perpendicular to \textit{ab} planes. For both compounds, with decreasing temperature, H$_{c2}^{//ab}$(T) shows a downward curvature while H$_{c2}^{\bot ab}$(T) shows an upward curvature, indicating their multiband superconductivity nature.

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Authors

  • Ni Ni

    • UCLA Physics \& Astronomy
    • Los Alamos National Laboratory
    • University of California, Los Angeles
    • Los Alamos National laboratory, Los Alamos, NM, 87544, USA

  • Eundeok Mun

    • NHMFL-LANL
    • Los Alamos National laboratory, Los Alamos, NM, 87544, USA

  • Shan Jiang

    • Department of physics and Astronomy, University of California, Los Angeles, CA, 90095, USA

  • Vivien Zapf

    • National High Magnetic Field Lab
    • Los Alamos National laboratory, Los Alamos, NM, 87544, USA
    • National High Magnetic Field Lab (NHMFL), Los Alamos National Lab (LANL)

  • Robert Cava

    • Department of Chemistry, Princeton University
    • Department of Chemistry, Princeton university, Princeton NJ 08544 USA
    • Princeton University Chemistry Department
    • Institute for Quantum Matter, Princeton University
    • Department of Chemistry, Princeton University, NJ, 08544, USA
    • Princeton University

  • Eric D. Bauer

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory
    • Los Alamos National laboratory, Los Alamos, NM, 87544, USA

  • Filip Ronning

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory
    • Los Alamos National laboratory, Los Alamos, NM, 87544, USA