Anisotropic Magnetic Fluctuations in the Ferromagnetic Superconductor UCoGe Studied by Direction-Dependent Co59 NMR Measurements

Y. Ihara, T. Hattori, K. Ishida, Y. Nakai, E. Osaki, K. Deguchi, N. K. Sato, and I. Satoh
Phys. Rev. Lett. 105, 206403 – Published 10 November 2010
PDFHTMLExport Citation
Abstract
Authors
Article Text
  • ACKNOWLEDGEMENTS
    • References

    Abstract

    We have carried out direction-dependent Co59 NMR experiments on a single crystal sample of the ferromagnetic superconductor UCoGe in order to study the magnetic properties in the normal state. The Knight-shift and nuclear spin-lattice relaxation rate measurements provide microscopic evidence that both static and dynamic susceptibilities are ferromagnetic with strong Ising anisotropy. We discuss that superconductivity induced by these magnetic fluctuations prefers spin-triplet pairing state.

    • Figure
    • Figure
    • Figure
    • Figure
    • Received 17 August 2010

    DOI:https://doi.org/10.1103/PhysRevLett.105.206403

    © 2010 The American Physical Society

    Authors & Affiliations

    Y. Ihara1,*, T. Hattori1, K. Ishida1, Y. Nakai1, E. Osaki2, K. Deguchi2, N. K. Sato2, and I. Satoh3

    • 1Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
    • 2Department of Physics, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
    • 3Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

    • *ihara@scphys.kyoto-u.ac.jp

    Article Text (Subscription Required)

    Click to Expand

    References (Subscription Required)

    Click to Expand
    Issue

    Vol. 105, Iss. 20 — 12 November 2010

    Reuse & Permissions
    Access Options
    Author publication services for translation and copyediting assistance advertisement

    Authorization Required

    Log In
    Other Options
    ×

    Download & Share

    PDFExportReuse & PermissionsCiting Articles (53)
    ×

    Images

    ×

    Sign up to receive regular email alerts from Physical Review Letters

    Log In

    Cancel
    ×

    Search

    Article Lookup

    Paste a citation or DOI
    Enter a citation
    ×