Critical behavior and phase diagram in the layered ferromagnetic FeTa3S6 single crystals
Critical behavior and phase diagram in the layered ferromagnetic FeTa3S6 single crystals
复制标题
层状铁磁 FeTa3S6 单晶的临界行为和相图
DOI：
10.1103/physrevb.105.144413
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发表时间：
2022
影响因子：
3.7
通讯作者：
Zengming Zhang
中科院分区：
文献类型：
--
作者：
Azizur Rahman;Majeed ur Rehman;Maryam Kiani;Hongze Zhao;Jianlin Wang;Yalin Lu;Keqing Ruan;Rucheng Dai;Zhongping Wang;Lei Zhang;Jian Wang;Zengming Zhang
本文系统地研究了高度空气稳定的二维本征铁磁体单晶的磁化强度。磁化强度测量表明，在35 K左右发生顺磁到铁磁（PM-FM）相变，沿晶体学c轴（）沿着具有强磁各向异性。临界指数= 0.189（2），= 1.423（1），且= 35 K表明二维（2D）伊辛型的自旋相互作用与长程（）相互作用内耦合。一个全面的磁相图的基础上详细的磁化测量和普适性标度的构建在三个磁场区。的磁相图类似于的磁相图，表现为手征磁孤子晶格。DFT模拟表明，大的磁各向异性能是由大量的轨道磁矩、主体晶格自旋-轨道耦合以及主体晶格与嵌入Fe组分的杂化等综合作用引起的.此外，磁各向异性（c）是由于自旋守恒过程= 0在磁各向异性能量中的主要贡献，其不同于其中自旋翻转过程= 1占主导地位的、引起面内（c）磁各向异性的或的贡献。
The magnetization of the highly air-stable two-dimensional (2D) intrinsic ferromagnetsingle crystal has been systematically investigated. Magnetization measurement revealed paramagnetic to ferromagnetic (PM-FM) phase transition at around 35 K and a strong magnetic anisotropy along the crystallographic c axis (). The critical exponents= 0.189(2),= 1.423(1), andwith= 35 K suggest that the spin interaction of a two-dimensional (2D) Ising type incoupled with long-range () interaction. A comprehensive magnetic phase diagram based on detailed magnetization measurements and universality scaling ofis constructed over three magnetic field regions. The magnetic phase diagram ofis analogous to that of, which exhibits a chiral magnetic soliton lattice. DFT simulation reveals that the large magnetic anisotropy energy inoriginates from the combined effects such as considerable orbital magnetic moment, host lattice spin-orbit coupling, and hybridization between host latticeand the intercalated Fe component. Furthermore, the magnetic anisotropy (c) inis due to the dominant contribution of the spin conserving process= 0 in magnetic anisotropy energy, which differs from that of, or, where the spin flipping process= 1 dominates, causing in-plane (c) magnetic anisotropy.