Unusual Muon Spin Relaxation in Hydrated Cobaltite Superconductors

ORAL

Abstract

Muon spin relaxation ($\mu^+$SR) was studied in zero (ZF) and weak transverse magnetic field (TF) in Na$_x$(H$_3$O)$_z$CoO$_2\cdot y$H$_2$O and its deuterated analog. In ZF, the muon relaxes (surprisingly) faster for the deuterated sample. Detectable effects of superconductivity are also surprisingly subtle in both cases.

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Authors

  • Scott L. Stubbs

    • Univ. of British Columbia

  • Jess H. Brewer

    • Univ. of British Columbia

  • Jun Sugiyama

    • Toyota CRDL

  • Yutaka Ikedo

    • Toyota CRDL

  • Peter Russo

    • TRIUMF

  • Eduardo J. Ansaldo

    • Univ. of Saskatchewan

  • Kim H. Chow

    • Univ. of Alberta

  • Hiroto Ohta

    • Dept. of Chemistry, Kyoto Univ.

  • Kazuyoshi Yoshimura

    • Dept. of Chemistry, Kyoto Univ.