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Título : Optical anisotropy of (113)-oriented GaAs/AlAs superlattices
Autor : Armelles Reig, Gaspar, Castrillo, Pedro, Domínguez, P. S., González Sotos, Luisa, Ruiz, A., Contreras-Solorio, D. A., Velasco, V. R., García-Moliner, F.
Fecha de publicación : 15-May-1994
Editor: American Physical Society
Resumen: 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.
Descripción : 4 páginas, 4 figuras, 1 tabla.
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ISSN: 1098-0121
DOI: 10.1103/PhysRevB.49.14020
Citación : Physical Review B 49(19): 14020-14023 (1994)
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