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Double-Q magnetic structures and strong planar anisotropy in tetragonal ErRu2Ge2and ErRu2Si2

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The European Physical Journal B - Condensed Matter and Complex Systems Aims and scope Submit manuscript

Abstract.

Single crystal magnetization measurements and powder neutron diffraction on tetragonal ErRu2Ge2 as well as anisotropy of the paramagnetic susceptibility and specific heat measurements on ErRu2Si2 are presented. Besides the huge crystal field contribution to the uniaxial anisotropy, which favors the basal plane, a strong in-plane anisotropy is evidenced. From these features and neutron diffraction experiments it is shown that magnetic structures of these materials are double-Q and accordingly non-colinear below their Néel temperature (5.2 and 6.0 K for Ge and Si based compounds, respectively). The magnetic structures induced during the metamagnetic processes are discussed.

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Authors and Affiliations

  1. Laboratoire Louis Néel,CNRS, BP 166, 38042, Grenoble Cedex 9, France

    A. Garnier, D. Gignoux & D. Schmitt

  2. Institut Laue Langevin, BP 156, 38042, Grenoble Cedex 9, France

    B. Ouladdiaf

  3. Faculty of Science, Yamaguchi University, 753, Yamaguchi, Japan

    T. Shigeoka

Authors
  1. A. Garnier
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  2. D. Gignoux
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  3. B. Ouladdiaf
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  4. D. Schmitt
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  5. T. Shigeoka
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Received 24 December 1999

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Garnier, A., Gignoux, D., Ouladdiaf, B. et al. Double-Q magnetic structures and strong planar anisotropy in tetragonal ErRu2Ge2and ErRu2Si2 . Eur. Phys. J. B 16, 423–427 (2000). https://doi.org/10.1007/PL00011079

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  • DOI: https://doi.org/10.1007/PL00011079

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