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Titolo:
Electronic state mixing in X-x and X-y valleys in AlAs/GaAs (001)
Autore:
Karavaev, GF; Chernyshov, VN;
Indirizzi:
Tomsk State Univ, Siberian Inst Phys & Technol, Tomsk 634050, Russia TomskState Univ Tomsk Russia 634050 hys & Technol, Tomsk 634050, Russia
Titolo Testata:
SEMICONDUCTORS
fascicolo: 7, volume: 35, anno: 2001,
pagine: 807 - 815
SICI:
1063-7826(2001)35:7<807:ESMIXA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOUBLE-BARRIER STRUCTURES; HYDROSTATIC-PRESSURE; SEMICONDUCTOR HETEROINTERFACES; ENVELOPE FUNCTIONS; HETEROSTRUCTURES; GAAS/ALXGA1-XAS; CONNECTION; FIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Karavaev, GF Tomsk State Univ, Siberian Inst Phys & Technol, NovosobornayaPl, Tomsk 634050, Russia Tomsk State Univ Novosobornaya Pl Tomsk Russia 634050 Russia
Citazione:
G.F. Karavaev e V.N. Chernyshov, "Electronic state mixing in X-x and X-y valleys in AlAs/GaAs (001)", SEMICONDUCT, 35(7), 2001, pp. 807-815

Abstract

The X-x - X-y mixing of X-valley electronic states in AlAs/GaAs(001) heterostructures is analyzed. General, structure symmetry-related constraints onthe parameters of a matrix matching the envelopes are derived. A model describing the X-x - X-y mixing is proposed. The obtained structure of the matching matrix differs essentially from those used previously. The parametersof the model are determined on the basis of pseudopotential calculations. Both the model and pseudopotential calculations have been carried out for the level dispersion in AlAs X quantum wells, the electronic spectra of (AlAs)(M)(GaAs)(N)(001) superlattices, and the X-electron transmission coefficient for structures with a single X-well and two X-barriers. The good agreement of the results of both sets of calculations shows the efficiency of theproposed model for envelopes with parameters determined in the study. (C) 2001 MAIK "Nauka/Interperiodica".

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Documento generato il 27/09/20 alle ore 06:55:31