Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/98369
Type: Artigo de periódico
Title: Theoretical Investigation Of The Electrical And Optical Activity Of Vanadium In Gaas
Author: Caldas M.J.
Figueiredo S.K.
Fazzio A.
Abstract: We study the excitation and ionization processes at the isolated substitutional vanadium impurity in GaAs. The electronic structure is solved through the spin-restricted version of the multiple-scattering X method to obtain the relevant mean-field energies, and correlation effects are evaluated through the Fazzio-Caldas-Zunger multiplet approach. The similar systems GaP:V, InP:V are also investigated. Our results for GaAs:V point to the occurrence of an acceptor level at Ec-0.16 eV, the donor level appearing very close to or within the valence band. The V-related midgap acceptor should then be related to some complex defect involving vanadium. We also suggest that V2+ in these compounds is present in the low-spin ground state E2..AE © 1986 The American Physical Society.
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Rights: aberto
Identifier DOI: 10.1103/PhysRevB.33.7102
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0012627343&partnerID=40&md5=c1a6559d0fe6ee5493478377c48de4cb
Date Issue: 1986
Appears in Collections:Unicamp - Artigos e Outros Documentos

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