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Huttel, Y. ; Navarro Palma, Elena ; Telling, N. D. ; van der Laan, G. ; Pigazo, F. ; Palomares, F. J. ; Quintana, C. ; Román, E. ; Armelles, G. ; Cebollada, A. | American Physical Society | 2008-09We show that Fe nanoislands capped with Al, Pd, and Pt protecting layers include an alloy at the interface with the capping layer, which explains the previously known capping layer dependence on the interparticle magnetic coupling. Vibrating sam[...]texto impreso
Galceran, R. ; Balcells, Ll. ; Martínez-Boubeta, C. ; Bozzo, B. ; Cisneros-Fernández, J. ; Mata, M. de la ; Magén, C. ; Arbiol, J. ; Tornos, J. ; Cuéllar Jiménez, Fabián Andrés ; Sefrioui, Zouhair ; Cebollada, A. ; Golmar, F. ; Huesos, L.E. ; Casanova, F. ; Santamaría Sánchez-Barriga, Jacobo ; Martínez, B. | American Physical Society | 2015-09-16We report on magnetotransport properties on La_(0.7)Sr_(0.3)MnO_(3)/MgO/Fe tunnel junctions grown epitaxially on top of (001)-oriented SrTiO_(3) substrates by sputtering. It is shown that the magnetoresistive response depends critically on the M[...]texto impreso
Navarro Palma, Elena ; Vélez, M. ; Huttel, Y. ; Pérez Junquera, A. ; Martín, J. Y. ; Lima, O. F. de ; Cebollada, A. ; Alameda, J. M. ; Vicent López, José Luis | American Institute of Physics | 2009-02-01Shifted hysteresis loops characteristic of the exchange bias effect between a ferromagnet and an antiferromagnet are demonstrated in structures formed by a 2.5 nm Cr layer deposited on top of an array of Fe nanoislands (Cr/Fe-nanoislands). This [...]texto impreso
Calleja, J. F. ; Huttel, Y. ; Contreras, M. C. ; Navarro Palma, Elena ; Presa, B. ; Matarranz, R. ; Cebollada, A. | American Institute of Physics | 2006-09-01A detailed study of the structure and magnetic properties of V/Co versus Co/V bilayers grown on MgO(001) substrates with cubic and hexagonal Co crystal structures is presented. Co is found to adopt fcc structure when grown on MgO(001), while it [...]
