NMR Studies of TmVO4

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

  • Paulo Menegasso

    Physics, Campinas State University, Instituto de Física “Gleb Wataghin”, UNICAMP

  • Tanat Kissikov

    University of California, Davis

  • Pierre Massat

    Physics, Stanford University, Stanford University

  • Ian R Fisher

    Physics, Stanford University, Applied Physics, Stanford University, Stanford University, Pulsed Field Faclity, National High Magnetic Field Laboratory

  • Nicholas Curro

    University of California, Davis