凝聚态物理
反铁磁性
范德瓦尔斯力
材料科学
自旋电子学
静水压力
铁磁性
磁性
各向异性
自旋(空气动力学)
磁各向异性
磁场
物理
磁化
热力学
量子力学
分子
作者
Yuxuan Peng,Zhou Lin,Ганг Тиан,Jie Yang,Peijie Zhang,Fanggui Wang,Pingfan Gu,Xingyu Liu,Chin-Wei Wang,Maxim Avdeev,Fuyang Liu,Dong Zhou,Rui Han,Peng Shen,Wenyun Yang,Shunquan Liu,Yu Ye
标识
DOI:10.1002/adfm.202106592
摘要
Abstract Controlling the phases of matter is a central task in condensed matter physics and materials science. In 2D magnets, manipulating spin orientation is of great significance in the context of the Mermin–Wagner theorem. Herein, a systematic study of temperature‐ and pressure‐dependent magnetic properties up to 1 GPa in van der Waals CrPS 4 is reported. Owing to the temperature‐dependent change of the magnetic anisotropy energy, the material undergoes a first‐order spin reorientation transition with magnetic moments realigning from being almost parallel with the c axis in the ac plane to the quasi‐1D chains of CrS 6 octahedra along the b axis upon heating. The spin reorientation temperature is suppressed after applying pressure, shifting the high‐temperature phase to lower temperatures with the emergence of spin‐flop transitions under magnetic fields applied along the b axis. The saturation field increases with pressure, indicating the enhancement of interlayer antiferromagnetic coupling. However, the Néel temperature is slightly reduced, which is ascribed to the suppression of intralayer ferromagnetic coupling. The work demonstrates the control of spin orientation and metamagnetic transitions in layered antiferromagnets, which may provide new perspectives for exploring 2D magnetism and related spintronic devices.
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