Atomic-scale characterization of two-dimensional magnets and their heterostructures  

作　　者：Yuli Huang Mingyue Sun Yihe Wang Andrew Thye Shen Wee Wei Chen 

机构地区：[1]Joint School of National University of Singapore and Tianjin University,International Joint Institute of Tianjin University,Fuzhou 350207,China [2]Department of Physics,National University of Singapore,Singapore 117551,Singapore [3]Department of Chemistry,National University of Singapore,Singapore 117542,Singapore

出　　处：《ChemPhysMater》2023年第4期282-294,共13页化学物理材料（英文）

基　　金：The authors acknowledge financial support from the National Nat-ural Science Foundation of China(Grant No.12004278);the Natural Science Foundation of Fujian Province(2022J06035);the Ministry of Education,Singapore,under its ARC Tier 2 program(Award T2EP-50122-0007).

摘　　要：The realization of long-range magnetic ordering in two-dimensional(2D)van der Waals systems significantly expands the scope of the 2D family as well as their possible spin-related phenomena and device applications.The atomically thin nature of 2D materials makes their magnetically ordered states sensitive to local environments,and this necessitates advanced characterization at the atomic scale.Here,we briefly review several representative 2D magnetic systems,namely,iron chalcogenides,chromium chalcogenides,chromium trihalides,and their het-erostructures.With powerful scanning-probe microscopy,atomically resolved characterization of their crystalline configurations,electronic structures,and magnetization distributions has been achieved,and novel phenomena such as giant tunneling magnetoresistance and topological superconductivity have been observed.Finally,we discuss the challenges and new perspectives in this flourishing field.

关 键 词：Two-dimensional magnets Two-dimensional heterostructures Scanning probe microscopy Spin-polarized configuration 

分 类 号：O64[理学—物理化学]