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

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

2012-03-29

arxiv.org/abs/1203.6482v1

Physics

Condensed Matter

Superconductivity

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

Scientific paper

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.

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