INFRARED REFLECTIVITY OF DOPED INSB AND CDS

被引：21

作者：

MCMAHON, TJ

BELL, RJ

机构：

[1] Department of Physics, University of Missouri, Rolla

[2] Department of Physics, Graduate Center for Materials Research, University of Missouri, Rolla

[3] Naval Weapons Center, China Lake, CA

来源：

PHYSICAL REVIEW | 1969年 / 182卷 / 02期

关键词：

D O I：

10.1103/PhysRev.182.526

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The coupling of free carriers and lattice-vibrational modes in CdS and InSb was investigated by using reflectance measurements. When the free-carrier concentration is such that the longitudinal-optical-mode frequency is at or near the plasma frequency, the longitudinal mode takes on a mixed character and is shifted in a manner similar to that described by Varga in 1965, while the transverse mode remains fixed. The electron effective masses in such a situation can be determined with the lattice effects excluded. In the case of CdS, the polaron mass and additional absorption in the plasma mode above the longitudinal-opticalphonon frequency must be taken into account. © 1969 The American Physical Society.

引用

页码：526 / &

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