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Type: Artigo de periódico
Title: Magnetic circular dichroism in nanostructured hematite
Author: de Castro, ARB
Zysler, RD
Mansilla, MV
Arciprete, C
Dimitrijewits, M
Abstract: We have measured magnetic circular dichroism at room temperature in nanostructured hematite alpha -Fe2O3, which is antiferromagnetic in bulk. The dichroism was measured at the Fe L edge. Samples with very different colloidal sizes showed essentially equal dichroism signals. We conclude that the dichroism is originated at the core of the nanoparticles, as opposed to the net magnetic moment, which is believed to originate in the surface layer of the colloids. (C) 2001 Elsevier Science B,V. All rights reserved.
Subject: nanostructured Fe2O3
colloidal hematite
magnetic circular dichroism
Fe L edge absorption
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0304-8853(01)00206-2
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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