Abstract
The magnetic order induced by the pressure was studied in FeSe by means of muon spin rotation () technique. By following the evolution of the oscillatory part of the signal as a function of angle between the initial muon spin polarization and 101 axis of the studied FeSe sample, 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 the FeTe system, but with the Fe spins turned by within the plane. The value of the magnetic moment per Fe atom was estimated to be at GPa.
- Received 28 October 2016
DOI:https://doi.org/10.1103/PhysRevB.95.180504
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