Rare Earth Transition Metal Sulfides ABS₃

Yang Qiuhua, Fu Xixian^*, Wang Xiaodong
(Department of Chemistry, School of Science, Tianjin University, Tianjin 30072)

Abstract Preparation,crystal structure,electrical and magnetic properties of ternary rare earth transition metal sulfides ABS₃ are discussed in the paper. The vanadium and chromium sulfides crystallize in a monoclinic layer structure ,while the other ABS₃ sulfides crystallize in a hexagonal structure. XPS measurements of these sulfides indicate that the transition metal is trivalent in the V and Cr sulfides ,while it is divalent in the Mn, Fe,Co and Ni sulfides .The electrical and magnetic properties of the sulfides are related to their structures and the electronic configurations of the transition metal ions.
Key words ABS₃, Crystal structure, Electrical and magnetic properties

稀土过渡金属硫化物ABS₃

杨秋华 傅希贤^* 王晓东
(天津大学理学院化学系 天津 300072)

摘要 本文主要介绍稀土过渡金属硫化物ABS₃的制备、结构与电磁性能，其中V和Cr的硫化物具有层状的单斜结构，其它的硫化物则具有六方结构；XPS测试结果表明V和Cr的硫化物中过渡金属是+3价的，而其它硫化物中过渡金属为+2价；其电磁性质主要与硫化物的结构与过渡金属的电子构型有关。
关键词 ABS₃ 晶体结构 电、磁性能

杨秋华 女，33岁，博士，从事钙钛矿型光催化材料的研究。 联系人 E-mail:Qiuhuay@eyou.com
2002-01-17收稿，2002-04-26修回