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Nuclear spin relaxation of161Dy in Gd above the Curie temperature observed with the Mössbauer effect

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Abstract

Using a source of181Tb, we have observed a substantial linewidth anomaly in the161Dy Mössbauer Effect just above the Curie temperature of Gd. Preliminary analysis of the anomaly is consistent with behavior expected for critical spin dynamics. Uncertainty in the Curie temperature prevents conclusive analysis of the linewidth divergence in terms of the dynamical exponent, z.

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Authors and Affiliations

  1. Department of Physics, Clark University, 01610, Worcester, MA, USA

    Ataur R. Chowdhury, Gary S. Collins & Christoph Hohenemser

Authors
  1. Ataur R. Chowdhury
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  2. Gary S. Collins
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  3. Christoph Hohenemser
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Supported in part by N.S.F. grant DMR 80-02443 to Clark University.

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Chowdhury, A.R., Collins, G.S. & Hohenemser, C. Nuclear spin relaxation of161Dy in Gd above the Curie temperature observed with the Mössbauer effect. Hyperfine Interact 16, 617–620 (1983). https://doi.org/10.1007/BF02147326

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