Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67877
Type: Artigo
Title: Generation and control of spin-polarized photocurrents in GaMnAs heterostructures
Author: Bezerra, Anibal T.
Castelano, Leonardo K.
Degani, Marcos H.
Maialle, Marcelo Z.
Farinas, Paulo F.
Studart, Nelson
Abstract: Photocurrents are calculated for a specially designed GaMnAs semiconductor heterostructure. The results reveal regions in the infrared range of the energy spectrum, in which the proposed structure is remarkably spin-selective. For such photon energies, the generated photocurrents are strongly spin-polarized. Application of a relatively small static bias in the growth direction of the structure is predicted to efficiently reverse the spin-polarization for some photon energies. This behavior suggests the possibility of conveniently simple switching mechanisms. The physics underlying the results is studied and understood in terms of the spin-dependent properties emerging from the particular potential profile of the structure. (C) 2014 AIP Publishing LLC.
Photocurrents are calculated for a specially designed GaMnAs semiconductor heterostructure. The results reveal regions in the infrared range of the energy spectrum, in which the proposed structure is remarkably spin-selective. For such photon energies, th
Subject: Engenharia
Física
Country: Estados Unidos
Editor: AIP Publishing
Citation: Applied Physics Letters. Amer Inst Physics, v. 104, n. 2, 2014.
Rights: aberto
Aberto
Identifier DOI: 10.1063/1.4861656
Address: https://aip.scitation.org/doi/10.1063/1.4861656
Date Issue: 2014
Appears in Collections:FCA - Artigos e Outros Documentos

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