RESONANT SCATTERING OF POLARIZED X-RAYS AT THE4dEDGE OF GADOLINIUM

J.-M. Mariot, L. Journel, R. Delaunay, C. F. Hague, M. Sacchi, F. Sirotti, G. Panaccione, A. Mirone, S. Turchini and T. Prosperi
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J.-M. Mariot: Laboratoire de Chimie Physique – Matière et Rayonnement (UMR 7614), Université P. et M. Curie, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
L. Journel: Laboratoire de Chimie Physique – Matière et Rayonnement (UMR 7614), Université P. et M. Curie, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
R. Delaunay: Laboratoire de Chimie Physique – Matière et Rayonnement (UMR 7614), Université P. et M. Curie, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
C. F. Hague: Laboratoire de Chimie Physique – Matière et Rayonnement (UMR 7614), Université P. et M. Curie, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
M. Sacchi: LURE, Université Paris Sud, BP 34, 91898 Orsay Cedex, France
F. Sirotti: LURE, Université Paris Sud, BP 34, 91898 Orsay Cedex, France
G. Panaccione: Laboratorio Nazionale TASC–INFM, Strada Statale 14, km 163.5 Basovizza, 34012 Trieste, Italy
A. Mirone: ESRF, 6 rue Jules Horowitz, BP 220, 38043 Grenoble Cedex, France
S. Turchini: CNR–ICMAT, Area della Ricerca di Roma, CP 10, 00016 Monterotondo Stazione, Italy
T. Prosperi: CNR–ICMAT, Area della Ricerca di Roma, CP 10, 00016 Monterotondo Stazione, Italy

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 977-981

Abstract: The impact of resonant scattering of polarized X-rays is illustrated taking the gadolinium4dedge energy range as an example. It is shown that: (i) the study of the reflection of linearly polarized light by a magnetized Gd sample gives information on the electronic states of the system, similar to that given by magnetic circular dichroism in absorption; (ii) the energy-loss peaks corresponding to spin-flip transitions in the4d → 4fexcitation exhibit a strong circular dichroism.

Date: 2002
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DOI: 10.1142/S0218625X02003172

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