Xie Lilia S, Husremović Samra, Gonzalez Oscar, Craig Isaac M, Bediako D Kwabena
Department of Chemistry, University of California, Berkeley, California 97420, United States.
Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
J Am Chem Soc. 2022 Jun 8;144(22):9525-9542. doi: 10.1021/jacs.1c12975. Epub 2022 May 18.
Transition metal dichalcogenides (TMDs) intercalated with spin-bearing transition metal centers are a diverse class of magnetic materials where the spin density and ordering behavior can be varied by the choice of host lattice, intercalant identity, level of intercalation, and intercalant disorder. Each of these degrees of freedom alters the interplay between several key magnetic interactions to produce disparate collective electronic and magnetic phases. The array of magnetic and electronic behavior typified by these systems renders them distinctive platforms for realizing tunable magnetism in solid-state materials and promising candidates for spin-based electronic devices. This Perspective provides an overview of the rich magnetism displayed by transition metal-intercalated TMDs by considering Fe- and Cr-intercalated NbS and TaS. These four exemplars of this large family of materials exhibit a wide range of magnetic properties, including sharp switching of magnetic states, current-driven magnetic switching, and chiral spin textures. An understanding of the fundamental origins of the resultant magnetic/electronic phases in these materials is discussed in the context of composition, bonding, electronic structure, and magnetic anisotropy in each case study.
插入有含自旋过渡金属中心的过渡金属二硫属化物（TMDs）是一类多样的磁性材料，其中自旋密度和有序行为可通过主体晶格的选择、插入剂的种类、插入水平以及插入剂无序度来改变。这些自由度中的每一个都会改变几种关键磁相互作用之间的相互作用，从而产生不同的集体电子和磁相。这些系统所具有的一系列磁和电子行为使其成为在固态材料中实现可调谐磁性的独特平台，也是基于自旋的电子器件的有前景候选材料。本综述通过考虑插入了铁和铬的NbS₂和TaS₂，概述了过渡金属插入的TMDs所展现出的丰富磁性。这类大量材料中的这四个示例展现出广泛的磁性，包括磁态的急剧切换、电流驱动的磁切换以及手性自旋纹理。在每个案例研究中，结合组成、键合、电子结构和磁各向异性，讨论了这些材料中产生的磁/电子相的基本起源。
