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Type: Artigo de periódico
Title: Giant effective g-factor in Pb(x)Eu(1-x)Te epitaxial films
Author: Heredia, E
Rappl, PHD
Motisuke, P
Gazoto, AL
Iikawa, F
Brasil, MJSP
Abstract: We investigated Pb(x)Eu(1-x)Te films with x <= 0.2 by magneto-optical measurements. For x similar to 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. (C) 2008 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Citation: Applied Physics Letters. Amer Inst Physics, v. 93, n. 3, 2008.
Rights: aberto
Identifier DOI: 10.1063/1.2961018
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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