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Artículo
Dependence of exchange anisotropy and coercivity on the Fe–oxide structure in oxygen-passivated Fe nanoparticles
(American Institute of Physics, 1999)
Ultrafine Fe particles have been prepared by the inert gas condensation method and subsequently oxygen passivated. The as-obtained particles consist in an Fe core surrounded by an amorphous Fe-oxide surface layer. The ...
Artículo
Evidence of spin disorder at the surface–core interface of oxygen passivated Fe nanoparticles
(AIP Publishing, 1998)
Hysteresis, thermal dependence of magnetization, and coercivity of oxide coated ultrafine Fe particles prepared by inert gas condensation and oxygen passivation have been studied in the 5–300 K range. The results are ...
Artículo
Magnetic anisotropy obtained from demagnetization curves: Influence of particle orientation and interactions
(AIP Publishing, 1999-04-27)
The influence of easy axis orientation and interparticle interactions on the apparent magnetic anisotropy distribution, obtained from the demagnetization curve analysis, has been studied. For any particle orientation, the ...
Artículo
Espectroscopia de impedancía de monocristales 4.7 mol% Y-PSZ
(Sociedad Española de Cerámica y Vidrio, 1995)
El ajuste mediante el método Rietveld del espectro de difracción de rayos-X de un monocristal Zr02-4.7mol%Y203, muestra la existencia de una microestructura de dos fases t+t'. Los espectros de impedancia de este material ...
Artículo
Study of a diastereoisomeric dihydrothiophene derivative at 150 K
(International Union of Crystallography, 1999)
Artículo
Low-frequency excitations in glassy selenium: A comparison of neutron-scattering and molecular-dynamics results
(American Institute of Physics Publising LLC, 1993)
The microscopic low-frequency dynamics of glassy selenium is investigated by means of the concurrent use of neutron inelastic scattering and computer simulations. A separation of the dynamic response in terms of intra- and ...
Artículo