Long wavelength lattice dynamics for quaternary alloys: GaInPSb and AlGaAsSb

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.352214· OSTI ID:6976746

Jaw, D H; Stringfellow, G B ^[1]

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1. Departments of Electrical Engineering and Materials Science and Engineering, 304 EMRO, University of Utah, Salt Lake City, Utah 84112 (United States)

Long wavelength lattice dynamics of the quaternary alloys Ga[sub 1[minus][ital x]]In[sub [ital x]]P[sub 1[minus][ital y]]Sb[sub [ital y]] and Al[sub [ital x]]Ga[sub 1[minus][ital x]]As[sub [ital y]]Sb[sub 1[minus][ital y]] have been investigated. The optical phonons show a four mode behavior in Ga[sub 1[minus][ital x]]In[sub [ital x]]P[sub 1[minus][ital y]]Sb[sub [ital y]] and a three mode behavior in Al[sub [ital x]]Ga[sub 1[minus][ital x]]As[sub [ital y]]Sb[sub 1[minus][ital y]] over the composition ranges investigated. An average random cell model is used to describe the behavior of the optical phonons of both systems. The calculations of the dependence of the long wavelength optical phonon frequencies on solid composition are in good agreement with the experimental results.

• DOE Contract Number: FG02-84ER45061
• OSTI ID: 6976746
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 72:9; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ANTIMONIDES
ANTIMONY COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
DATA ANALYSIS
GALLIUM ANTIMONIDES
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INDIUM ANTIMONIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
LATTICE VIBRATIONS
PHONONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
QUASI PARTICLES