Pressure dependence of ferromagnetic phase boundary in BaVSe studied with high-pressure SR

Sugiyama, Jun; Higemoto, Wataru ; Andreica, D.*; Forslund, O. K.*; Nocerino, E.*; Mnsson, M.*; Sassa, Y.*; Gupta, R.*; Khasanov, R.*; Ota, Hiroto*; Nakamura, Hiroyuki*

The magnetic nature of a quasi-one-dimensional compound, BaVSe, has been investigated with positive muon spin rotation and relaxation measurements at ambient and high pressures. At ambient pressure, the spectrum recorded under zero external magnetic field exhibited a clear oscillation below the Curie temperature due to the formation of quasistatic ferromagnetic order. As pressure increased from ambient pressure, $T_{C}$ was found to decrease slightly up to about 1.5 GPa, at which point $T_{C}$ started to increase rapidly with the further increase of the pressure. Based on a strong ferromagnetic interaction along the -axis, the result revealed that there are two magnetic interactions in the ab-plane.

Language	:	English
Journal	:	Physical Review B
Volume	:	103
Number	:	10
Pages	:	p.104418_1 - 104418_10
Publication Year/Month	:	2021/03
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Paper URL	:	https://doi.org/10.1103/PhysRevB.103.104418
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Keywords	:	ミュオンスピン緩和測定; 磁性
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Registration No. : AA20210894
JAEA Abstracts No. : 51000681
Paper Submission No. : 26606

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