NMR Evidence for psuedogap in URu$_2$Si$_2$

ORAL

Abstract

We report $^{29}$Si NMR measurements in single crystals and aligned powders of URu$_2$Si$_2$ in the hidden order and paramagnetic phases. In the paramagnetic phase, the spin lattice relaxation data reveal evidence of spin fluctuations of U moments. Furthermore, we find evidence for partial suppression of density of states below 30 K.

*Work at UC Davis was supported by UCOP-TR01, the NNSA under the SSAA program through DOE Research Grant \#DOE DE-FG52-09NA29464, and the NSF under Grant No. DMR-1005393.

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Authors

  • Kent Shirer

    • University of California, Davis, Department of Physics
    • University of California - Davis
    • University of California at Davis

  • Adam Dioguardi

    • University of California - Davis

  • John Crocker

    • University of California - Davis

  • Nicholas apRoberts-Warren

    • University of California - Davis

  • Abigail Shockley

    • University of California - Davis

  • Ching Lin

    • University of California - Davis

  • David Nisson

    • University of California - Davis

  • Jason Cooley

    • Los Alamos National Laboratory

  • Brian Maple

    • University of California - San Diego

  • Jason Haraldsen

    • Los Alamos National Laboratory

  • Matthias Graf

    • Los Alamos National Laboratory

  • Nicholas Curro

    • University of California - Davis