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EuRu2As2: A New Ferromagnetic Metal with Collapsed ThCr2Si2-Type Structure

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Abstract

EuRu2As2 was characterized by structural, resistivity, magnetization and Mössbauer measurements. It crystallizes in collapsed ThCr2Si2-type structure with c/a=2.58 and space group I4/mmm. The temperature and field dependences of magnetization indicate that the material is ferromagnetically ordered at T C=17.3±0.5 K, where the electrical resistivity shows a kink. Mössbauer spectroscopy studies determine that the Eu2+ moments align basically along the crystallographic c-axis, which is in contrast to the case in EuFe2As2 in which the Eu2+ spins lie in the basal planes.

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Authors and Affiliations

  1. Department of Physics, Zhejiang University, Hangzhou, 310027, China

    W. H. Jiao & G. H. Cao

  2. Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel

    I. Felner & I. Nowik

Authors
  1. W. H. Jiao
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  2. I. Felner
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  3. I. Nowik
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  4. G. H. Cao
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Correspondence to I. Felner.

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Jiao, W.H., Felner, I., Nowik, I. et al. EuRu2As2: A New Ferromagnetic Metal with Collapsed ThCr2Si2-Type Structure. J Supercond Nov Magn 25, 441–445 (2012). https://doi.org/10.1007/s10948-011-1287-1

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  • DOI: https://doi.org/10.1007/s10948-011-1287-1

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