Metal-to-insulator transition in platinum group compounds  

作　　者：Yu-Xuan Xia Jian-Gang He Nuo-Fu Chen Ji-Kun Chen 

机构地区：[1]School of New Energy,North China Electric Power University,Beijing102206,China [2]School of Mathematics and Physics,University of Science and Technology Beijing,Beijing 100083,China [3]Key Laboratory of Advanced Materials and Devices for PostMoore Chips(Ministry of Education),School of Materials Science and Engineering,Jniversity of Science and Technology Beijing,Beijing 100083,China

出　　处：《Rare Metals》2024年第8期3460-3474,共15页稀有金属（英文版）

基　　金：financially supported by the National Key Research and Development Program of China (No.2021YFA0718900);the National Natural Science Foundation of China (Nos.62074014 and 52073090);the support by Xiao Mi scholar project。

摘　　要：The metal-to-insulator transition(MIT) as usually achieved in 3d-orbital transitional metal(TM) compounds opens up a new paradigm in correlated electronics via triggering abrupt variations in their transportation properties.Compared to such 3d-orbital TM compounds,the MIT within the platinum group(Pg) element compounds based on the 4d-and 5d-orbital configurations is more complicated,owing to their elevation in the spinorbit coupling and meanwhile weakened intra-atomic Coulomb repulsions.This brings in a new freedom to regulate the balance in their metallic or semiconductive orbital configurations,while their MIT properties can be potentially combined with their spintronic properties to enable new electronic applications.Herein,we review the electronic transport and MIT behaviors within the existing family of Pg-containing compounds,particularly those showing first-order MIT behaviors that can be useful in correlated electronics.It is also hoped that summarizing the presently reported Pg-containing MIT compounds will lead to the discovery of more new material families and/or new mechanisms associated with the Pg-containing compounds showing MIT properties.

关 键 词：Metal-to-insulator transition Platinum group compounds Electron correlation Spin-orbital coupling 

分 类 号：O641.1[理学—物理化学]