Influence of thermal cycling on the optical spectra of TlInS2 crystals having an incommensurate phase

被引：1

作者：

T. D. Ibragimov

机构：

[1] Institute of Physics, Natl. Acad. of Sci. of Azerbaijan, Baku, 370143

来源：

Journal of Applied Spectroscopy | 2003年 / 70卷 / 1期

关键词：

Incommensurate phase; Optical absorption; Phase transition; Second-harmonic generation; Superstructure; Symmetry group; Zone of two-phonon states;

D O I：

10.1023/A:1023280627065

中图分类号：

学科分类号：

摘要：

The crystals of TlInS2 are investigated by the methods of optical absorption and second-harmonic generation. It is found that after a crystal is cooled for the first time an additional band appears in the absorption spectrum, and the intensity of the second harmonic is greatest at temperatures 170-201 K. The characteristic features of the spectra and their dependence on the process of thermal cycling are explained by the formation of clusters and regions of an incommensurate phase in a commensurate one.

引用

页码：99 / 103

页数：4

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