Muon spin resonance study on UCu$_{1.5}$Sn$_{2}$

ORAL

Abstract

We report on muon spin relaxation measurements results on UCu$_{1.5}$Sn$_{2}$, which crystallizes in the CaBe$_{2}$Ge$_{2}$-type structure. Our analysis is consistent with collinear antiferromagnetic order that occurs below 108 K, in agreement with previous reports. The Brillouin-like behavior of the temperature dependence of the magnetic response is consistent with localized 5$f$ moments. In the paramagnetic regime a fast and a slowly relaxing signal is seen, the former reflecting disturbed local magnetic surroundings caused by the defect structure.

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Authors

  • E. Ansaldo

    San Diego State University, University of Saskatchewan

  • S. El-Khatib

    Los Alamos National Laboratory

  • Anna Llobet

    Los Alamos National Laboratory, Manuel Lujan Neutron Scattering Center, Los Alamos National Laboratory, Lujan Neutron Scattering Center, Los Alamos National Laboratory

  • Michael Kalvius

    Technical University Munich

  • D. Noakes

    Virginia State University

  • C. Stronach

    Virginia State University

  • E. Ansaldo

    San Diego State University, University of Saskatchewan

  • H. Nakotte

    New Mexico State University