Experimental evidence for a spontaneously generated effective mass lateral superlattice

Low-temperature photoluminescence, photoluminescence excitation, and photoreflectance modulation measurements are used to probe the electronic structure and the dielectric function of (001) ( Gap) 2 ( InP) 2 superlattices (grown on a GaInP 2 buffer) that exhibit lateral composition modulation. An 8×...

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Veröffentlicht in:	Superlattices and microstructures 1992, Vol.12 (1), p.57-61
Hauptverfasser:	Mascarenhas, A., Alonso, R.G., Horner, G.S., Froyen, S., Hsieh, K.C., Cheng, K.Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology Physics Surface and interface electron states
Online-Zugang:	Volltext
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Zusammenfassung:	Low-temperature photoluminescence, photoluminescence excitation, and photoreflectance modulation measurements are used to probe the electronic structure and the dielectric function of (001) ( Gap) 2 ( InP) 2 superlattices (grown on a GaInP 2 buffer) that exhibit lateral composition modulation. An 8×8 Luttinger-model Hamiltonian, which includes the effects of coherency strain generated by the lateral composition modulation, is used to analyze the experimental results. These studies yield the first experimental evidence for a spontaneously generated effective mass superlattice.
ISSN:	0749-6036 1096-3677
DOI:	10.1016/0749-6036(92)90220-Y