Optical Phonons in ${Ga}_{1 - x} {Al}_{x} As$ Mixed Crystals: A Modified Random-Element Isodisplacement-Model Calculation

15 August 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 2 (4) , 1215-1216
https://doi.org/10.1103/physrevb.2.1215

Abstract

The modified random-element isodisplacement model correctly predicts that

{Ga}_{1 - x} {Al}_{x} As

forms a "two-mode"-type mixed crystal. The model calculations agree very well with a recent infrared measurement of concentration dependence of long-wavelength longitudinal and transverse optic mode frequencies of the mixed-crystal system.

Keywords

This publication has 5 references indexed in Scilit:

Infrared Reflection Spectra of ${Ga}_{1 - x} {Al}_{x} As$ Mixed Crystals
Physical Review B, 1970
Longitudinal and transverse localized vibration modes
Solid State Communications, 1969
Application of a Modified Random-Element-Isodisplacement Model to Long-Wavelength Optic Phonons of Mixed Crystals
Physical Review B, 1968
Long‐Wavelength Longitudinal Phonons of Multi‐Mode Crystals
Physica Status Solidi (b), 1968
Optical Phonons in $Zn S_{x} {Se}_{1 - x}$ Mixed Crystals
Physical Review Letters, 1967

Optical Phonons inGa1−xAlxAsMixed Crystals: A Modified Random-Element Isodisplacement-Model Calculation

Abstract

Keywords

Optical Phonons in ${Ga}_{1 - x} {Al}_{x} As$ Mixed Crystals: A Modified Random-Element Isodisplacement-Model Calculation