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강상관계 물질 연구단
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Crystal structures and phase transitions of the van der Waals ferromagnet VI3

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Title
Crystal structures and phase transitions of the van der Waals ferromagnet VI3
Author(s)
Dolezal, P; Kratochvilova, M; Holy, V; Cermak, P; Sechovsky, V; Dusek, M; Misek, M; T. Chakraborty; Noda, Y; Suhan Son; Je-Geun Park
Publication Date
2019-12
Journal
PHYSICAL REVIEW MATERIALS, v.3, no.12, pp.121401 -
Publisher
AMER PHYSICAL SOC
Abstract
The results of a single-crystal x-ray-diffraction study of the evolution of the crystal structures of VI3 with temperature with an emphasis on phase transitions are presented. Some related specific-heat and magnetization data are included. The existence of the room-temperature trigonal crystal structure R (3) over bar (148) has been confirmed. Upon cooling, VI3 undergoes a structural phase transition to a monoclinic phase at T-s similar to 79 K. T-s is reduced in magnetic fields applied along the trigonal c axis. When VI3 becomes ferromagnetic at T-FM1 similar to 50 K, magnetostriction-induced changes of the monoclinic-structure parameters are observed. Upon further cooling, the monoclinic structure transforms into a triclinic variant at 32 K which is most likely occurring in conjunction with the previously reported transformation of the ferromagnetic structure. The observed phenomena are preliminarily attributed to strong magnetoelastic interactions. ©2019 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6738
ISSN
2475-9953
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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