Browsing by Subject "Magnetismo"
Now showing items 1-4 of 4
-
Corrente de spins em nanoestruturas metálicas
| Posted on: 04 abr. 2008The physical mechanisms that control the spin dynamics in nanoscale systems such as magnetic thin films and multilayers are of great importance for the development and improvement of technological applications. Factors ... -
Diagrama de fases e ponto crítico quântico no CeCoIn5-xSnx: efeitos de pressão e concentração
| Posted on: 01 jan. 2007The family of CeTIn5 materials (T=Rh,Ir,Co) has become a subject of intense research once they exibit several interesting phenomena such as pressure-induced superconductivity, coexistence of antiferromagnetism and ... -
Dinâmica de spins em nanoestruturas metálicas
| Posted on: 01 mar. 2011In the present work, we investigate the spin pumping mechanism. In 2002, Tserkovnyak et al. proposed that a precessing magnetization of a magnetic unit coupled to a non-magnetic metal can transfer angular momentum to the ... -
Estudos estruturais e magnéticos de oxiboratos anidros de cobalto dos tipos ludwigita e hulsita
| Posted on: 22 fev. 2011This work reports the study of four ludwigite-type oxyborates: Co3O2BO3, Co2FeO2BO3, Ni2FeO2BO3 e Co5Ti(O2BO3)2 and a fifth of the hulsite-type: Co5.52Sb0.48(O2BO3)2. We have carried-out the synthesis of these materials ...