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Autor Hernando Grande, Antonio |
Documentos disponibles escritos por este autor (72)
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Hernando Grande, Antonio ; Gálvez Alonso, Fernando ; García, Miguel A. ; Guinea, Francisco | Elsevier | 2020-02-15We analyze the contribution of the inhomogeneous magnetic field induced by an electrical current to the spin Hall effect in metals. The Zeeman coupling between the field and the electron spin leads to a spin dependent force, and to spin accumula[...]texto impreso
Crespo del Arco, Patricia ; González, J. M. ; Hernando Grande, Antonio ; Ynduráin, F. J. | American Physical Society | 2004-01It has been found that in highly anisometric ribbon-shaped Fe particles with nanoscale dimensions that the magnetization decreases with temperature markedly faster than in bulk bcc Fe. This anomalous dependence, which becomes more remarkable as [...]texto impreso
Crespo del Arco, Patricia ; Hernando Grande, Antonio ; Garcia Escorial, A. | American Institute of Physics | 1994-05-01Experimental results corresponding to the saturation magnetization and coercive field during the decomposition, upon annealing, of bcc and fcc Fe_xCu_(1-x), obtained by mechanical alloying are reported. The overall behavior points out that the d[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Rueda, T. ; Hernando Grande, Antonio ; Ramallo López, J. M. ; Giovanetti, L. J. ; Requejo, F. G. | American Institute of Physics | 2008-05-15In this work we present new results on spontaneous oxidation of disordered fcc FePt nanoparticles. The "as-made" oleic acid and oleylamine coated FePt nanoparticles of average size 4 nm synthesized by a high-boiling coordinating solvent method w[...]texto impreso
We have succeeded in increasing up to 150 K the Curie temperature in the Fe_(64)Ni_(36) invar alloy by means of a severe mechanical treatment followed by a heating up to 1073 K. The invar behavior is still present as revealed by the combination [...]texto impreso
Guerrero, E. ; Muñoz Márquez, M. A. ; García, M. A. ; Crespo del Arco, Patricia ; Fernandez Pinel, E. ; Hernando Grande, Antonio ; Fernández, A. | IOP publishing ltd | 2008-04-30Surface plasmon resonance measurements and magnetic characterization studies have been carried out for two types of thiol-capped gold nanoparticles (NPs) with similar diameters between 2.0 and 2.5 nm and different organic molecules linked to the[...]texto impreso
García, M. A. ; De la Venta, J ; Crespo del Arco, Patricia ; LLopis,, J. ; Penadés, S. ; Fernández, A. ; Hernando Grande, Antonio | American Physical Society | 2005-12In this Rapid Communication we show the relationship between surface plasmon resonance damping and the intensity of surface bonding for capped Au nanoparticles, (NPs). Up to now the influence of capping has been included as a phenomenological mo[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Multigner, M. ; Morales, M. P. ; Rueda, T. ; Fernandez Pinel, E. ; Hernando Grande, Antonio | Elsevier Science BV | 2007-09In this work, the structural and magnetic properties of the gold- coated FePt nanoparticles synthesized from high- temperature solution phase are presented. The amount of gold was optimized to obtain most of the FePt particles coated. The partic[...]texto impreso
Romero, J.J. ; Cuadrado, R. ; Arroyo, A. ; García, M. A. ; Hernando Grande, Antonio ; Cortés Gil, R ; González Calbet, J. M. ; Vallet Regí, V. | American Institute of Physics | 2006-04-15Data are presented on the thermal dependence of the hysteretic properties of cationic vacancies including manganite samples of composition LaMnO_(3+?)(?=0.05 and 0.12). Our results evidence the presence in both samples of two magnetic phases hav[...]texto impreso
Hernando Grande, Antonio ; Crespo del Arco, Patricia ; Castaño, F. J. ; Arcas, J. ; Multigner, M. ; Barandiaran, J. M. ; Fernández Barquín, L. | American Physical Society | 2000-01-01We report the existence of a thermally induced sharp increase of thermoremanence around the Curie temperature of Invar-like Fe-Zr(B,Cu) soft magnetic glasses. Neutron-diffraction measurements indicate that a true enhancement of the average local[...]texto impreso
Lopez-Dominguez, V. ; García, M. A. ; Marín Palacios, María Pilar ; Hernando Grande, Antonio | Nature Publishing Group | 2017-07-24In this work, we demonstrate theoretically and experimentally the possibility of tuning the electromagnetic properties of metamaterials with magnetic fields by incorporating amorphous magnetic microwires. The large permeability of these wires at[...]texto impreso
Magnetism of capped nanoparticles, NPs, of non- magnetic substances as Au and ZnO is briefly reviewed. The source of the magnetization is discussed on the light of recent X-ray magnetic circular dichroism experiments. As magnetic dichroism analy[...]