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Electronic Structure of Lanthanum Hydrides with Switchable Optical Properties

K. K. Ng·F. C. Zhang·V. I. Anisimov·T. M. Rice
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Abstract

Recent dramatic changes in the optical properties of LaH_{2+x} and YH_{2+x} films discovered by Huiberts et al. 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 LaH_3. The metal-insulator transition at $x\sim 0.8$ takes place in a band of highly localized states centered on the $H$-vacancies in the LaH_3 structure.

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K. K. Ng, F. C. Zhang, V. I. Anisimov, T. M. Rice. 1996-09-09. Electronic Structure of Lanthanum Hydrides with Switchable Optical Properties. https://doi.org/10.1103/physrevlett.78.1311

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