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Magnetic ordering in DyNi2Si2 andDyNi2Ge2 intermetallics studied by161Dy Mössbauer spectroscopy

  • Section III.2: Magnetism and Theory
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Abstract

The161Dy Mössbauer spectra of DyNi2Si2 andDyNi2Ge2 have been measured at temperatures between 4.2 and22 K. Temperature dependences of spectrum andγ-ray transmission rate at zero velocity as well as magnetic susceptibility measurements indicate clearly that anti-ferromagnetic orderings occur atT N=7 K in DyNi2Si2 and9 K in DyNi2Ge2. Though the spectrum of DyNi2Si2 is interpreted approximately by a single set of hyperfine parameters, that of DyNi2Ge2 exhibits broadening of absorption lines which originates from distributed hyperfine parameters. The small values of hyperfine field, 707 MHz at 2.9 K in DyNi2Si2 and 765 MHz at 3.0 K in DyNi2Ge2 are attributable to the crystalline electric field interaction.

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Authors and Affiliations

  1. Institute for Materials Research, Tohoku University, 980, Sendai, Japan

    Akifumi Murata, Hideya Onodera, Masayoshi Ohashi & Yasuo Yamaguchi

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  1. Akifumi Murata
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  2. Hideya Onodera
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  3. Masayoshi Ohashi
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  4. Yasuo Yamaguchi
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Murata, A., Onodera, H., Ohashi, M. et al. Magnetic ordering in DyNi2Si2 andDyNi2Ge2 intermetallics studied by161Dy Mössbauer spectroscopy. Hyperfine Interact 78, 457–461 (1993). https://doi.org/10.1007/BF00568174

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  • DOI: https://doi.org/10.1007/BF00568174

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