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.

引用

页码：1311 / 1314

页数：4

共 13 条

[1]

BETHE H, 1957, HDB PHYSIK, V35

[2]

Chandrasekhar S, 1944, ASTROPHYS J, V100, P176, DOI 10.1086/144654

[3] THE GAP IN YH3 AND ITS LATTICE STRUCTURE [J].