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arXiv · 1610.09315

Pressure induced magnetic order in FeSe

Rustem Khasanov·Zurab Guguchia·Alex Amato·Elvezio Morenzoni·Xiaoli Dong·Fang Zhou·Zhongxian Zhao
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Abstract

The magnetic order induced by the pressure was studied in single crystalline FeSe by means of muon-spin rotation ($μ$SR) technique. By following the evolution of the oscillatory part of the $μ$SR signal as a function of angle between the initial muon-spin polarization and 101 axis of studied crystal it was found that the pressure induced magnetic order in FeSe corresponds either to the collinear (single-stripe) antiferromagnetic order as observed in parent compounds of various FeAs-based superconductors or to the Bi-Collinear order as obtained in FeTe system, but with the Fe spins turned by 45$^{\rm o}$. The value of the magnetic moment per Fe atom was estimated to be $\simeq 0.13-0.14$~$μ_{\rm B}$ at $p\simeq 1.9$~GPa.

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Rustem Khasanov, Zurab Guguchia, Alex Amato, Elvezio Morenzoni, Xiaoli Dong, Fang Zhou, Zhongxian Zhao. 2016-10-28. Pressure induced magnetic order in FeSe. https://doi.org/10.1103/physrevb.95.180504

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