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μSR study of the magnetic ordering in Ce1-xLaxRu2Si2

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Abstract

Zero‐field μSR measurements have been carried out in the paramagnetic and magnetically ordered states of the heavy fermion alloys: Ce1-xLaxRu2Si2 (x=0.05,0.13,0.25). In Ce1-xLaxRu2Si2 system, TK drastically decreases with x from 24 K for x=0 and becomes very close to the magnetic ordering temperature TN. As functions of TK and TN, the magnetic instabilities were studied in this system. For x=0.05,\ 0.13\ \mboxand\ 0.25 samples, longitudinal muon spin relaxation was measured to study non‐magnetic to magnetic transition and the change from itinerant to localized electron state with increasing La impurities. We discuss the dynamics of muon spins in the paramagnetic and antiferromagnetic state.

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Authors and Affiliations

  1. Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, 560, Osaka, Japan

    Y. Yamamoto, K. Marumoto & Y. Miyako

  2. Meson Science Laboratory, Faculty of Science, University of Tokyo, Bunkyo‐ku, Tokyo, 113, Japan

    K. Nishiyama & K. Nagamine

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  1. Y. Yamamoto
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  2. K. Marumoto
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  3. Y. Miyako
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  4. K. Nishiyama
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  5. K. Nagamine
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Yamamoto, Y., Marumoto, K., Miyako, Y. et al. μSR study of the magnetic ordering in Ce1-xLaxRu2Si2 . Hyperfine Interactions 104, 227–232 (1997). https://doi.org/10.1023/A:1012644330248

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