稀土氢化物的晶体结构及其可转换光学特性

稀土氢化物薄膜的可转换光学特性近年来才被发现，采用气态吸放氢或电化学充放电方法，可使稀土薄膜的光学特性产生可逆变换。本文介绍了稀土氢化物的晶体结构和热力学特性，对稀土氢化物薄膜的楞转换光学特性及其研究进展进行了概述，并分析了稀土薄膜光学特性变化的原因。

The Crystal Structure and Switchable Optical Properties of Rare Earth Hyrides

The rare earth films with switchable optical properties were found recen tly.During the hydrogen absorption/desorption procedure or electrochemical charging /discharging,the optical properties of the r are earth hydrides can be changed dra stically.In this paper,the crystal structure and thermodynamic properties of rare earth hydrides were intr oduced,the progress in the switchab le optical properties of rare earth hydride films was briefly reviewed.The mechanism for rare earth hydrides with switchable optical propertie s was discussed as well.