Inverted optical phonons in II-VI semiconducting compounds

被引：3

作者：

Vinogradov, Evgeny ^{[1
]}

Mavrin, Boris ^{[1
]}

Novikova, Nadezhda ^{[1
]}

Yakovlev, Vladimir ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2010年 / 247卷 / 06期

关键词：

II-VI semiconductors; phonons; infrared spectroscopy; RAMAN-SCATTERING; LATTICE-DYNAMICS; VIBRATIONS; SPECTRA; MODES;

D O I：

10.1002/pssb.200983154

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Additional optical phonons discovered in the majority of binary solid solution crystals of II-VI semiconductor compounds are discussed. Frequencies of these additional phonons are located inside the transverse longitudinal splitting of the F point optical phonons, where the real part of the crystal permittivity is negative, and are split by the crystal field into transverse optical (TO) and longitudinal optical (LO) phonons, the frequencies of these additional LO phonons turning out to be lower than those of additional TO phonons. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1480 / 1484

页数：5

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