High pressure and high magnetic field tuning of the S = 1 quantum antiferromagnet system

ORAL

Abstract

[Ni(HF2)(pyz)2]SbF6 is a quasi-one-dimensional S = 1 antiferromagnet in which the magnetic ground state can be tuned by changing the single-ion anisotropy (D) and the intrachain (J ) and interchain (J’) exchange interactions, allowing exploration of the Haldane phase diagram close to quantum criticality. With a newly developed pressure cell designed for pulsed magnetic fields of up to 100 T, we tune the above interactions in [Ni(HF2)(pyz)2]SbF6 using hydrostatic pressures of up to 5.4 GPa. The characteristic form of the magnetic susceptibility was measured in pulsed fields of up to 65 T using a Proximity Detector Oscillator (PDO), allowing values of D, J and J’ to be inferred at each pressure.

*The National High Magnetic Field Lab Pulsed Field facility is supported by the National Science foundation under cooperative Grant Nos. DMR-1157490 and DMR-1644779, the U.S. DOE, and the State of Florida.

–

Presenters

  • Dan Sun

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

Authors

  • Dan Sun

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

  • Sam Curley

    • Physics, University of Warwick
    • Warwick University

  • Paul Goddard

    • Physics, University of Warwick
    • Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
    • Warwick University
    • Department of Physics, University of Warwick

  • Jacqueline Villa

    • Eastern Washington University

  • Jamie Manson

    • Chemistry, Eastern Washington University
    • Dept. of Chemistry and Biochemistry, Eastern Washington University
    • Eastern Washington University
    • Department of Chemistry and Biochemistry, Eastern Washington University

  • John Singleton

    • National High Magnetic Field Laboratory, Los Alamos National Laboratory
    • MPA-MAG, Los Alamos National Laboratory
    • National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545
    • Los Alamos National Laboratory
    • NHMFL, Los Alamos National Labs
    • NHMFL, Los Alamos National Laboratory
    • Los Alamos, National High Magnetic Field Laboratory
    • NHMFL, Los Alamos Natl Lab
    • Los Alamos Natl Lab

  • Fedor Balakirev

    • Los Alamos National Laboratory
    • Los Alamos National Labs
    • Los Alamos, National High Magnetic Field Laboratory
    • National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, USA
    • National High Magnetic Field Laboratory