Electronic structure of lanthanum hydrides with switchable optical properties

被引：85
作者：
Ng, KK
Zhang, FC
Anisimov, VI
Rice, TM
机构：
[1] ETH HONGGERBERG,CH-8093 ZURICH,SWITZERLAND
[2] RUSSIAN ACAD SCI,INST MET PHYS,EKATERINBURG 620219,RUSSIA
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.78.1311
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recent dramatic changes in the optical properties of LaH2+x and YH2+x films discovered by Huiberts et al. [Nature (London) 380, 231 (1996)] suggest their electronic structure is described best by a local model. Electron correlation is important in H- centers and in explaining the transparent insulating behavior of LaH3. The metal-insulator transition at x similar to 0.8 takes place in a band of highly localized states centered on the H vacancies in the LaH3 structure.
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页码：1311 / 1314
页数：4
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