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Open Access item Optical anisotropy of (113)-oriented GaAs/AlAs superlattices
|Authors:||Armelles Reig, Gaspar|
Domínguez, P. S.
Contreras-Solorio, D. A.
Velasco, V. R.
|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|
|Appears in Collections:||(IMM-CNM) Artículos|
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