Accession Number : ADA131785

Title :   Clustering and Ordering in III-V Alloys.

Descriptive Note : Annual scientific rept. 1 Jun 82-31 May 83,

Corporate Author : WASHINGTON UNIV ST LOUIS MO SEMICONDUCTOR RESEARCH LAB

Personal Author(s) : Wolfe,C M ; Muller,M W ; Davis,G A ; Hsieh,S Julie ; Salzman,K A

PDF Url : ADA131785

Report Date : 31 Jul 1983

Pagination or Media Count : 57

Abstract : The III-V semiconducting alloys are typically grown by epitaxial techniques at temperatures where, in the absence of substrate effects, they are thermodynamically unstable. This can result in problems associated with clustering of like atoms or ordering of unlike atoms. Long-range ordering could yield interesting III-V ternary compounds. Several concepts are discussed which could reduce clustering and promote long-range ordering in III-V alloys. Recent results indicate that the local atomic structure in GaxIn1-xAs is chalcopyrite-like and that long-range ordering may be thermo-dynamically feasible. Kinetically, it is suggested that growth on substrates could promote long-range order.

Descriptors :   *Epitaxial growth, Alloys, Clustering, Semiconductor devices, Group III compounds, Group V compounds, Crystal growth, Crystal structure, Gallium arsenides, Indium phosphides, Zinc alloys, Thermodynamics, Reaction kinetics, Atomization, Morphology, Orientation(Direction), Photoconductivity, Charge carriers, Heterojunctions, Crystal lattices, Substrates, Electron mobility, Semiconductor diodes, Schematic diagrams, Reflection

Subject Categories : Electrical and Electronic Equipment
      Metallurgy and Metallography
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE