NMR Studies of TmVO_4

ORAL

Abstract

TmVO4 undergoes a tetragonal to orthorhombic structural phase transition below 2.2K due to a cooperative Jahn-Teller distortion. The Tm ions experience a crystal-field effect with a non-Kramer’s ground state doublet. We have performed 51V NMR in a single crystal to investigate the role of magnetic and quadrupolar fluctuations. We find that the spin lattice relaxation rate varies strongly with field orientation, which reflects the role of quadrupolar(nematic) fluctuations near the critical temperature. We have also observed strong angular dependence of the 51V NMR Knight shift.

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Presenters

  • Zhipan Wang

    University of California, Davis

Authors

  • Zhipan Wang

    University of California, Davis

  • Ziwen Mei

    University of California, Davis, University of California, Davis

  • Paulo Menegasso

    Instituto de Física “Gleb Wataghin”, UNICAMP

  • Tanat Kissikov

    University of California, Davis

  • Pierre Massat

    Department of Applied Physics and Geballe Laboratory for Advanced Materials, Stanford University, Stanford Institute of Energy and Materials Science, SLAC National Accelerat

  • Ian Fisher

    Department of Applied Physics and Geballe Laboratory for Advanced Materials, Stanford University

  • Nicholas James Curro

    University of California, Davis