OPTICALLY INDUCED CRYSTAL-TO-AMORPHOUS-STATE TRANSITION IN AS2S3

被引：41

作者：

FRUMAR, M ^{[1
]}

FIRTH, AP ^{[1
]}

OWEN, AE ^{[1
]}

机构：

[1] UNIV EDINBURGH,DEPT ELECT ENGN,EDINBURGH,MIDLOTHIAN,SCOTLAND

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 193卷

关键词：

D O I：

10.1016/0022-3093(95)00426-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The optically induced transition of crystalline As2S3 (orpiment) to the amorphous state was studied using Raman spectroscopy. The illumination of As2S3 crystals by Kr laser light (530.9 and 568.2 nm wavelength) rapidly reduces the intensities of the narrow Raman lines of c-As2S3, while increasing the intensities of broad Raman bands (340 cm(-1), 231 cm(-1)) typical of the amorphous state. The origin of the effect is non-thermal; the light probably decreases the kinetic barrier for the disordered crystal-to-amorphous-state transition.

引用

页码：447 / 450

页数：4

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