Phonon shifts and strains in strain-layered (Ga1−xInx)As
- 7 December 1987
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (23), 1919-1921
- https://doi.org/10.1063/1.98300
Abstract
We have measured the phonon frequencies (Raman technique) and the strains (x‐ray rocking curve technique) of (Ga1−xInx)As films on GaAs (100) substrates. Films with various x values and various thicknesses were studied. The films range from perfect epitaxial to those that have relaxed by different amounts. The strain‐induced frequency shift was calculated for each sample using the phonon deformation constants and measured strains. From the measurements and calculation, it is shown that the frequency shifts due to strain and the equivalent bulk frequencies for the phonon give internal agreement. This indicates that the Raman technique can be used for in situ monitoring of the growth process.Keywords
This publication has 11 references indexed in Scilit:
- Lattice relaxation of InAs heteroepitaxy on GaAsJournal of Crystal Growth, 1987
- X-ray study of misfit strain relaxation in lattice-mismatched heterojunctionsApplied Physics Letters, 1986
- Dynamical x-ray diffraction from nonuniform crystalline films: Application to x-ray rocking curve analysisJournal of Applied Physics, 1986
- Raman Piezospectroscopy in GaAs RevisitedPhysica Status Solidi (b), 1985
- Raman scattering in GaSb-AlSb strained layer superlatticesApplied Physics Letters, 1985
- Fermi-Level Pinning by Misfit Dislocations at GaAs InterfacesPhysical Review Letters, 1983
- Kinematical x-ray diffraction in nonuniform crystalline films: Strain and damage distributions in ion-implanted garnetsJournal of Applied Physics, 1981
- Stress-Induced Shifts of First-Order Raman Frequencies of Diamond- and Zinc-Blende-Type SemiconductorsPhysical Review B, 1972
- A lattice theory of morphic effects in crystals of the diamond structureAnnals of Physics, 1970
- Effect of static uniaxial stress on the Raman spectrum of siliconSolid State Communications, 1970