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Type: Artigo de periódico
Title: Giant Effective G -factor In Pbx Eu1-x Te Epitaxial Films
Author: Heredia E.
De Oliveira Rappl P.H.
Motisuke P.
Gazoto A.L.
Iikawa F.
Brasil M.J.S.P.
Abstract: We investigated Pbx Eu1-x Te films with x≤0.2 by magneto-optical measurements. For x∼0.01, the optical emission is similar to high quality EuTe films with two narrow lines attributed to excitonic recombinations associated with magnetic polarons. For increasing x, the emission becomes dominated by a broader lower energy band, which is very efficient as compared to the binary emission. The magneto-optical properties of the ternary films show various similarities with EuTe results, such as quenchings at similar temperatures and magnetic fields. Most remarkably, they also present a giant effective g -factor that makes this material a strong candidate for spintronic applications. © 2008 American Institute of Physics.
Rights: aberto
Identifier DOI: 10.1063/1.2961018
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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