Información del autor
Documentos disponibles escritos por este autor (6)
Añadir el resultado a su cesta Hacer una sugerencia Refinar búsqueda
texto impreso
Hernando Grande, Antonio ; Garcia, M.A. ; Gálvez Alonso, Fernando ; Guinea, F. | Elsevier | 2020-04-15It is shown that magnetic forces as the force -/+ mu(V) over barB, exerted on electron spins at rest, account for both the transverse spin imbalance typical of spin Hall effect and the transverse charge imbalance associated with pure spin curren[...]texto impreso
Alonso, J. L. ; Fernández Pérez, Luis Antonio ; Guinea, F. ; Laliena, V. ; Martín Mayor, Víctor | American Physical Society | 2002-09-01Considering the disorder caused in manganites by the substitution Mn?Fe or Ga, we accomplish a systematic study of doped manganites begun in previous papers. To this end, a disordered model is formulated and solved using the variational mean-fie[...]texto impreso
Alonso, J. L. ; Capitán, J. A. ; Fernández Pérez, Luis Antonio ; Guinea, F. ; Martín Mayor, Víctor | American Physical Society | 2001-08-01We study the phase diagram of the double exchange model, with antiferromagnetic interactions, in a cubic lattice both at zero and finite temperature. There is a rich variety of magnetic phases, combined with regions where phase separation takes [...]texto impreso
Alonso, J. L. ; Fernández Pérez, Luis Antonio ; Guinea, F. ; Lesmes, F. ; Martín Mayor, Víctor | American Physical Society | 2003-06-01The phase diagram of the double perovskites of the type Sr_(2-x)La_(x)FeMoO_(6) is analyzed, with and without disorder due to antisites. In addition to an homogeneous half metallic ferrimagnetic phase in the absence of doping and disorder, we fi[...]texto impreso
González Herrera, Elvira María ; Folgueras, A. D. ; Escudero, R. ; Ferrer, J.M. ; Guinea, F. ; Vicent López, José Luis | IOP Publishing | 2007-02-21We have measured the tunnelling current in Nb/Nb_xO_y/Ni planar tunnel junctions at different temperatures. The junctions are in the intermediate transparency regime. We have extracted the current polarization of the metal/ferromagnet junction w[...]texto impreso
Alonso, J. L. ; Fernández Pérez, Luis Antonio ; Guinea, F. ; Laliena, V. ; Martín Mayor, Víctor | American Physical Society | 2011-02-01It has been recently shown that the double exchange Hamiltonian, with weak antiferromagnetic interactions, has a richer variety of first- and second-order transitions than previously anticipated, and that such transitions are consistent with the[...]
