Field-Induced Magnetostructural Transitions in Antiferromagnetic Fe1+yTe1-xSx

Masashi Tokunaga; Takumi Kihara; Yoshikazu Mizuguchi; Yoshihiko Takano

doi:10.1143/JPSJ.81.063703

Field-Induced Magnetostructural Transitions in Antiferromagnetic Fe1+yTe1-xSx

Superconductivity 2012-05-10 v1 Strongly Correlated Electrons

Authors: Masashi Tokunaga , Takumi Kihara , Yoshikazu Mizuguchi , Yoshihiko Takano

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Abstract

The transport and structural properties of Fe1+yTe1-xSx (x=0, 0.05, and 0.10) crystals were studied in pulsed magnetic fields up to 65 T. The application of high magnetic fields results in positive magnetoresistance effect with prominent hystereses in the antiferromagnetic state. Polarizing microscope images obtained at high magnetic fields showed simultaneous occurrence of structural transitions. These results indicate that magnetoelastic coupling is the origin of the bicollinear magnetic order in iron chalcogenides.

Keywords

field-induced magnetostructural transition antiferromagnetic Fe1+yTe1-xSx magnetoresistance magnetoelastic coupling bicollinear magnetic order iron chalcogenides

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@article{arxiv.1203.6482,
  title  = {Field-Induced Magnetostructural Transitions in Antiferromagnetic Fe1+yTe1-xSx},
  author = {Masashi Tokunaga and Takumi Kihara and Yoshikazu Mizuguchi and Yoshihiko Takano},
  journal= {arXiv preprint arXiv:1203.6482},
  year   = {2012}
}

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5 pages, 5 figures, accepted for publication in Journal of the Physical Society of Japan

Field-Induced Magnetostructural Transitions in Antiferromagnetic Fe1+yTe1-xSx

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