Volume 49, Number 6, March 2000
|Page(s)||807 - 813|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Evidence for a high-spin Fe phase in multilayers
Unité Mixte de Recherche CNRS/Thomson-LCR, Domaine de Corbeville 91404
Orsay Cedex, France
2 Laboratoire de magnétisme Louis Néel, CNRS, B.P. 166 - 38042 Grenoble, France
3 Instituto de Microelectrónica de Madrid, CSIC Isaac Newton 8, Parque Tecnológico, 28760 Tres Cantos, Spain
4 IPCMS-GEMME - 23 rue de Loess, 67037 Strasbourg, France
5 European Synchrotron Radiation Facility (ESRF) BP 220, 38043 Grenoble Cedex, France
Accepted: 10 January 2000
We have investigated by X-ray Magnetic Circular Dichroism (XMCD) the Fe spin and orbital magnetic moments in Fe/Pd(001) multilayers with nominal Fe thicknesses up to 3 Atomic Layers (AL). We find a strong enhancement of both spin and orbital moments ( and ) compared to bulk Fe in excellent agreement with theoretical calculations. For 1 AL of Fe, the magnetic dipole term was deduced using the Stöhr and König method and found to be non-negligible (20% of ). We further show that, for 3 AL of Fe, the high spin phase is correlated to a fcc-like crystalline structure with a large atomic volume of .
PACS: 75.70.Cn – Interfacial magnetic properties (multilayers, magnetic quantum wells, superlattices, magnetic heterostructures) / 78.20.Ls – Magnetooptical effects
© EDP Sciences, 2000
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