Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/72952
Type: Artigo de periódico
Title: X-ray magnetic circular dichroism with tunable polarization helicity
Author: Varga, L
Giles, C
Zheng, YL
Pizzini, S
de Bergevin, F
Fontaine, A
Malgrange, C
Abstract: X-ray magnetic circular dichroism spectra have previously been obtained by switching the polarization helicity with a diamond quarter-wave plate (QWP) and keeping the applied magnetic field on the sample as an independent variable [Giles, Malgrange, Goulon, de Bergevin, Vettier, Fontaine, Dartyge & Pizzini (1994). Nucl. Instrum, Methods, A349, 622-625]. These results were obtained by subtracting an undesirable non-magnetic residual spectrum. Experiments reported here show that this residual spectrum mainly originates from a slight lateral displacement of the forward-diffracted beam in the QWP. A quantitative analysis of the phenomenon is in good agreement with predictions from X-ray dynamical theory.
Subject: X-ray magnetic circular dichroism
X-ray phase plates
X-ray polarization
Country: Dinamarca
Editor: Munksgaard Int Publ Ltd
Rights: aberto
Identifier DOI: 10.1107/S0909049599011267
Date Issue: 1999
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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