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Mössbauer study of mixed valent silicides Eu(Ir1−x Pd x )2Si2

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Abstract

The solid solutions Eu(Ir1−x Pd x )2Si2, which exist for 0≤x≤0.125 and 0.75≤x≤1. cristallize with the tetragonal ThCr2Si2-type structure. The variation of the europium valence with composition has been thoroughly studied at temperatures 4.2≤T≤293 K by151Eu Mössbauer resonance. For 0≤x≤0.125 the europium valence at room temperature decreases asx increases. For 0.75≤x≤1 the valence transition temperature Eu3+→Eu2+ increases asx increases.

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Authors and Affiliations

  1. Laboratoire de Chimie du Solide du CNRS, 351, cours de la Libération, 33405, Talence Cedex, France

    L. Fournes, B. Chevalier, B. Lloret & J. Etourneau

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  1. L. Fournes
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  2. B. Chevalier
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  3. B. Lloret
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  4. J. Etourneau
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Fournes, L., Chevalier, B., Lloret, B. et al. Mössbauer study of mixed valent silicides Eu(Ir1−x Pd x )2Si2 . Hyperfine Interact 53, 329–333 (1990). https://doi.org/10.1007/BF02101061

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  • DOI: https://doi.org/10.1007/BF02101061

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