SOUND VELOCITIES AND ELASTIC-MODULI IN CUINTE2 AND CUINSE2

被引：43

作者：

FERNANDEZ, B

WASIM, SM

机构：

[1] Centro de Estudios de Semiconductores, Departamento de Físca, Facultad de Ciencias, Universidad de Los Andes, Mérida

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1990年 / 122卷 / 01期

关键词：

D O I：

10.1002/pssa.2211220122

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A dynamic pulse-echo overlap method is used to measure the longitudinal and transverse sound velocities of polycrystalline samples of CuInTe2 and CuInSe2 between 4.2 and 300 K. From these measurements the temperature dependence of the elastic moduli is obtained. From the low temperature value of the average sound velocity, the Debye temperature is calculated to be 197.5 and 243.7 K for CuInTe2 and CuInSe2, respectively. Using the Szigeti relationships the ionicities are estimated to be 0.39 and 0.34 for CuInSe2 and CuInTe2, respectively.

引用

页码：235 / 242

页数：8

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