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Mössbauer spectroscopy on RE2Fe14BHx (RE-Y, Ce, Dy, Er) alloys

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Abstract

RE2Fe14B alloys and some of their hydrides have been studied through57Fe and161Dy Mössbauer spectroscopy (MS). For both the paramagnetic and ordered phases a consistent and physically sound analysis of the57Fe spectra is presented. Fe hyperfine fields and the local magnetic moments are obtained and compared with magnetic and structural data. A spin reorientation is observed for Er2Fe14B. A constant collinear structure down to 4.2 K was determined for the other samples. The161Dy spectra are interpreted for a pure ¦JZ=15/2 > ground multiplet in Dy2Fe14B and its hydride. The B2 crystal field parameters were estimated empirically for the Dy-alloy. Their values can account for the anisotropy in the compounds.

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Authors and Affiliations

  1. Centre de Recherches Nucléaires, 67037, Strasbourg Cédex, France

    J. M. Friedt, A. Vasquez, J. P. Sanchez, Ph. l'Heritier & R. Fruchart

  2. ENSIEG, 38402, St. Martin d'Hères Cédex, France

    Ph. l'Heritier & R. Fruchart

Authors
  1. J. M. Friedt
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  2. A. Vasquez
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  3. J. P. Sanchez
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  4. Ph. l'Heritier
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  5. R. Fruchart
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Friedt, J.M., Vasquez, A., Sanchez, J.P. et al. Mössbauer spectroscopy on RE2Fe14BHx (RE-Y, Ce, Dy, Er) alloys. Hyperfine Interact 28, 611–614 (1986). https://doi.org/10.1007/BF02061522

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  • DOI: https://doi.org/10.1007/BF02061522

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