Spin-lattice coupling induced weak dynamical magnetism in EuTiO_3 at high temperatures

Z. Guguchia; H. Keller; R. K. Kremer; J. Kohler; H. Luetkens; T. Goko; A. Amato; A. Bussmann-Holder

doi:10.1103/PhysRevB.90.064413

Spin-lattice coupling induced weak dynamical magnetism in EuTiO_3 at high temperatures

Materials Science 2014-09-04 v1

Authors: Z. Guguchia , H. Keller , R. K. Kremer , J. Kohler , H. Luetkens , T. Goko , A. Amato , A. Bussmann-Holder

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Abstract

EuTiO_3, which is a G-type antiferromagnet below T_N = 5.5 K, has some fascinating properties at high temperatures, suggesting that macroscopically hidden dynamically fluctuating weak magnetism exists at high temperatures. This conjecture is substantiated by magnetic field dependent magnetization measurements, which exhibit pronounced anomalies below 200 K becoming more distinctive with increasing magnetic field strength. Additional results from muon spin rotation ( ${\mu}$ SR) experiments provide evidence for weak fluctuating bulk magnetism induced by spin-lattice coupling which is strongly supported in increasing magnetic field.

Keywords

magnetic materials and spin systems spin excitations in condensed matter frustrated magnetism

Cite

@article{arxiv.1406.4915,
  title  = {Spin-lattice coupling induced weak dynamical magnetism in EuTiO_3 at high temperatures},
  author = {Z. Guguchia and H. Keller and R. K. Kremer and J. Kohler and H. Luetkens and T. Goko and A. Amato and A. Bussmann-Holder},
  journal= {arXiv preprint arXiv:1406.4915},
  year   = {2014}
}

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5 pages, 6 figures

Spin-lattice coupling induced weak dynamical magnetism in EuTiO_3 at high temperatures

Abstract

Keywords

Cite

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