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Open Access item Optical anisotropy of (113)-oriented GaAs/AlAs superlattices

Authors:Armelles Reig, Gaspar
Castrillo, P.
Domínguez, P. S.
González, Luisa
Ruiz, A.
Contreras-Solorio, D. A.
Velasco, V. R.
García-Moliner, F.
Issue Date:15-May-1994
Publisher:American Physical Society
Citation:Physical Review B 49(19): 14020-14023 (1994)
Abstract:The optical properties of (113)-oriented GaAs/AlAs superlattices grown by atomic-layer molecular-beam epitaxy at low substrate temperature have been studied by means of piezoreflectance techniques. Several transitions have been detected which exhibit heavy-hole and light-hole character. The heavy-hole transitions are more polarized along the [33¯2] direction whereas the light-hole transitions are more polarized along the [1¯10] direction. We have also performed calculations for these superlattices by using an empirical tight-binding Hamiltonian. According to the results thus obtained the observed optical anisotropy is related to the different components of the valence-band wave functions of the superlattices.
Description:4 páginas, 4 figuras, 1 tabla.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevB.49.14020
URI:http://hdl.handle.net/10261/33816
ISSN:1098-0121
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Appears in Collections:(IMM-CNM) Artículos
(ICMM) Artículos

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