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Título : Enhanced exchange and reduced magnetization of Gd in an Fe/Gd/Fe trilayer
Autor : Romera, Miguel, Muñoz, Montserrat, Maicas, M., Michalik, J. M., Teresa, José María de, Magen, C., Prieto, J. L.
Fecha de publicación : Sep-2011
Editor: American Physical Society
Resumen: The exchange interaction of Gd adjacent to Fe has been characterized by transport measurements on a double spin valve with a Fe/Gd/Fe trilayer as the middle layer. Our measurements show that the ferromagnetism of the Gd is enhanced by the presence of the Fe, and it remains ferromagnetic over its Curie temperature up to a thickness no smaller than 1 nm adjacent to the Fe. This thickness is more than double what has been reported before. Additionally, the saturation magnetization of the thin Gd layer sandwiched in Fe was found to be half of its bulk value. This reduced magnetization does not seem to be related to the proximity of Fe but rather to the incomplete saturation of Gd even for very high fields.
Descripción : 5 páginas, 6 figuras.-- PACS number(s): 75.70.−i, 75.47.De, 75.60.Ej
Versión del editor: http://dx.doi.org/10.1103/PhysRevB.84.094456
URI : http://hdl.handle.net/10261/47594
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.84.094456
Citación : Physical Review B 84(9): 094456 (2011)
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