Observation of a New CuPt-Type Ordered-Phase with Orientation in the [111]A Direction in Al0.5In0.5P Alloy
- 1 April 1995
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 34 (4B) , L469
- https://doi.org/10.1143/jjap.34.l469
Abstract
A new type of CuPt ordered-phase (CuPt-A) with orientation in the [111]A and [1̄1̄1]A directions was found in Al0.5In0.5P grown at 520° C on exact (001)GaAs substrate by gas-source molecular-beam epitaxy. Weak formation of conventional CuPt-B type ordered phase was also observed in the same AlInP layer. The surface reconstruction observed by RHEED during the growth was (2×2). At a growth temperature of 560° C the surface reconstruction was (2×1) and only conventional CuPt-B was formed. A step array parallel to [1̄10] and descending towards [110] was found to promote formation of the CuPt [111]A variant.Keywords
This publication has 11 references indexed in Scilit:
- Observation of a new ordered phase in As alloy and relation between ordering structure and surface reconstruction during molecular-beam-epitaxial growthPhysical Review Letters, 1994
- Spontaneous surface-induced long-range order inP alloysPhysical Review B, 1991
- Re-examination of the formation mechanism of CuPt-type natural superlattices in alloy semiconductorsJournal of Crystal Growth, 1991
- Electronic structure of the (GaP/(InP(111) strained-layer superlatticePhysical Review B, 1989
- TEM investigation of modulated structures and ordered structures in InAlAs crystals grown on (001) InP substrates by molecular beam epitaxyJournal of Crystal Growth, 1989
- Transmission electron microscopic study of the ordered structure in GaInP/GaAs epitaxially grown by metalorganic chemical vapor depositionApplied Physics Letters, 1988
- Band-Gap Energy Anomaly and Sublattice Ordering in GaInP and AlGaInP Grown by Metalorganic Vapor Phase EpitaxyJapanese Journal of Applied Physics, 1988
- Observation of Strong Ordering inalloy semiconductorsPhysical Review Letters, 1988
- Strong ordering in GaInP alloy semiconductors; Formation mechanism for the ordered phaseJournal of Crystal Growth, 1988
- Atomic ordering in As and alloy semiconductorsPhysical Review Letters, 1987