Antiferromagnetic ordering in EuPtGe$_3$ single crystal

Neeraj Kumar; Pranab Kumar Das; Ruta Kulkarni; A. Thamizhavel; S. K. Dhar; P. Bonville

doi:10.1088/0953-8984/24/3/036005

Antiferromagnetic ordering in EuPtGe$_3$ single crystal

Strongly Correlated Electrons 2011-12-22 v2 Materials Science

Authors: Neeraj Kumar , Pranab Kumar Das , Ruta Kulkarni , A. Thamizhavel , S. K. Dhar , P. Bonville

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Abstract

The magnetic properties of single crystalline EuPtGe $_3$ , crystallizing in the non-centrosymmetric BaNiSn $_3$ -type crystal structure, have been studied by means of magnetisation, electrical resistivity, heat capacity and $^{151}$ Eu M\"ossbauer spectroscopy. The susceptibility and heat capacity data indicate a magnetic transition at $T_{\rm N}$ = 11\,K. The M\"ossbauer data confirm this conclusion, but evidence a slight first order character of the transition. Analysing the magnetisation data using a mean field model with two antiferromagnetically coupled sublattices allows to explain some aspects of the magnetic behaviour, and to derive the first and second neighbour exchange integrals in EuPtGe $_3$ .

Keywords

magnetic structure magnetocaloric effect multiferroic

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@article{arxiv.1011.4876,
  title  = {Antiferromagnetic ordering in EuPtGe$_3$ single crystal},
  author = {Neeraj Kumar and Pranab Kumar Das and Ruta Kulkarni and A. Thamizhavel and S. K. Dhar and P. Bonville},
  journal= {arXiv preprint arXiv:1011.4876},
  year   = {2011}
}

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6 pages, 7 figures

Antiferromagnetic ordering in EuPtGe$_3$ single crystal

Abstract

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