PHONONS IN POLYMORPHOUS PBTE FILMS .2. INFRARED AND RAMAN-SPECTRA OF PBTE AND PBTE-CR FILMS ON KCL SUBSTRATES

被引：9

作者：

BALEVA, M

IVANOV, I

MOMTCHILOVA, M

机构：

[1] Fac. of Phys., Sofia Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 19期

关键词：

D O I：

10.1088/0953-8984/4/19/007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The far-infrared (FIR) reflectance of PbTe:Cr films deposited on KCl substrates was investigated. The Raman spectra of samples with prevailing GeS-type phase in the strained sublayer were investigated. More comprehensive information about the optical phonons in PbTe/KCl films was obtained from the parallel investigation of the FIR and Raman spectra. It turned out that frequencies of the Raman-active modes in the GeS-type content of the films are consistent with those measured in bulk PbTe at a hydrostatic pressure of about 6 GPa.

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页码：4645 / 4652

页数：8

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