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Spin dynamics in RENi5 ferromagnets byμSR measurements

  • Session 2. Magnetism
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Abstract

We report a zero fieldμSR study of single crystals of theRENi 5 ferromagnets where RE=Gd, Er, Dy or Tm. Our work points out the strong influence of the crystal electric field on the rare earth total momentum dynamics: whereas the spin-lattice relaxation process belowT c is controlled by a two magnon mechanism for a weakly anisotropic magnet (GdNi 5), the phonons drive the relaxation for a strongly anisotropic magnet such asErNi 5. ForTmNi 5 a comparison is made between the fluctuation time measured byμSR and169 Tm Mössbauer spectroscopy.

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Authors and Affiliations

  1. Interfaculty Reactor Institute, Technical University Delft, 2629, JB Delft, The Netherlands

    P. C. M. Gubbens & A. A. Moolenaar

  2. Département de Recherche Fondamentale sur la Matière Condensée, 85X, CEA, F-38041, Grenoble-Cedex, France

    P. Dalmas De Réotier & A. Yaouanc

  3. Natuurkundig Laboratorium., Universiteit van Amsterdam, 1018, XE Amsterdam, The Netherlands

    F. Kayzel, J. J. M. Franse & K. Prokes

  4. Kamerlingh Onnes Laboratorium der Rijksuniversiteit Leiden, 2300, RA Leiden, The Netherlands

    C. E. Snel

  5. Centre d'Etudes de Saclay, DRECAM/SPEC, F-91191, Gif-sur-Yvette, France

    P. Bonville, J. A. Hodges, P. Imbert & P. Pari

Authors
  1. P. C. M. Gubbens
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  2. A. A. Moolenaar
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  3. P. Dalmas De Réotier
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  4. A. Yaouanc
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  5. F. Kayzel
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  6. J. J. M. Franse
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  7. K. Prokes
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  8. C. E. Snel
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  9. P. Bonville
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  10. J. A. Hodges
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  11. P. Imbert
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  12. P. Pari
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Gubbens, P.C.M., Moolenaar, A.A., Dalmas De Réotier, P. et al. Spin dynamics in RENi5 ferromagnets byμSR measurements. Hyperfine Interact 85, 239–244 (1994). https://doi.org/10.1007/BF02069428

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  • DOI: https://doi.org/10.1007/BF02069428

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