High field phase diagram of LaH<sub>10</sub>

ORAL

Abstract

Recent research on the hydrogen-rich hydrides pushes the superconducting transition temperature (Tc) near the limit of room temperature. In the hydrides family, LaH10 keeps the current record of Tc of 250 K. Using a pulsed magnet, we mapped out the phase diagram of LaH10 under pressure of 140 GPa. The normal state has a linear temperature dependence and high resistance. Hc2 has been measured above 60 T. The information on the vortex liquid region, coherence length and density of states are obtained by our measurement, providing valuable information for theoretical and experimental hydride development.

*This work was performed at the National High Magnetic Field laboratory, which is supported by National Science Foundation Cooperative Agreement No. DMR-1644779, and the State of Florida.

–

Presenters

  • Dan Sun

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • National High Magnetic Field Laboratory, Los Alamos National Laboratory

Authors

  • Dan Sun

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • National High Magnetic Field Laboratory, Los Alamos National Laboratory

  • Vasily S Minkov

    • Max-Planck-Institut fuer Chemie
    • Max-Planck-Institut fur Chemie

  • Panpan Kong

    • Max-Planck-Institut fuer Chemie
    • Max-Planck-Institut fur Chemie

  • Alexander Drozdov

    • Max-Planck-Institut fuer Chemie
    • Max-Planck-Institut fur Chemie

  • Shirin Mozaffari

    • National High Magnetic Field Laboratory

  • Luis Balicas

    • Natl High Magnetic Field Lab
    • National High Magnetic Field Laboratory
    • National High Magnetic Field Lab

  • Mikhail Eremets

    • Max-Planck-Institut fuer Chemie
    • Carnegie Inst of Washington
    • Max-Planck-Institut fur Chemie
    • Max Planck Institute for Chemistry

  • Fedor Balakirev

    • Los Alamos National Laboratory
    • Los Alamos National Lab.
    • Los Alamos Natl Lab