AIP Advances (Dec 2019)

The first-order magnetoelastic transition in Eu2In: A 151Eu Mössbauer study

  • D. H. Ryan,
  • Durga Paudyal,
  • Francois Guillou,
  • Yaroslav Mudryk,
  • Arjun K. Pathak,
  • Vitalij K. Pecharsky

DOI
https://doi.org/10.1063/1.5129683
Journal volume & issue
Vol. 9, no. 12
pp. 125137 – 125137-4

Abstract

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Our 151Eu Mössbauer investigation of Eu2In and Eu2Sn shows that the europium in both materials is fully divalent. We confirm the distinct thermodynamic orders of the magnetic transitions and reveal a remarkable difference between the magnetic environments of the europium atoms in the two compounds. Possible structural and electronic origins for these differences are discussed using DFT calculations.