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Type: Artigo de periódico
Title: Exchange bias in Fe/EuTe(111) bilayers
Author: Macedo, WAA
Martins, MD
Pires, MJM
Oliveira, RB
Pombo, CJSM
Nunes, WC
Knobel, M
Rappl, PHO
Motisuke, P
Abstract: We report on the investigation of the exchange bias effect in Fe layers on EuTe(111), an antiferromagnetic semiconductor. For this ferromagnet (FM)/semiconducting antiferromagnet (AFM) exchange bias system, we have found positive and negative exchange bias effect (EB). Fresh samples exhibit positive EB, independently of the applied cooling field, indicating antiferromagnetic coupling between the FM and the AFM layers at the Fe/EuTe(111) interface. The change in EB with time, from positive EB for fresh samples to negative EB after short time,is attributed to aging effects at the Fe/EuTe interface. (c) 2007 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Citation: Journal Of Applied Physics. Amer Inst Physics, v. 102, n. 3, 2007.
Rights: aberto
Identifier DOI: 10.1063/1.2767220
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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