Buscar
Mostrando ítems 1-10 de 54
Detecção elétrica de correntes de spin em sistemas nano-estruturados
(Universidade Federal de Santa MariaCentro de Ciências Naturais e Exatas, 2016-12-15)
Spintronics is an emergent research field that seeks a better understanding of the role of electronic spin in solid state physics. Exploring electrons’ charge and spin, significant technological advances might be achieved, ...
Pure spin current manipulation in antiferromagnetically exchange coupled heterostructures
(American Institute of Physics, 2018-03-28)
We present a model to describe the spin currents generated by ferromagnet/spacer/ferromagnet exchange coupled trilayer systems and heavy metal layers with strong spin-orbit coupling. By exploiting the magnitude of the ...
Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling
(2014)
We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between ...
Study of the longitudinal spin Seebeck effect in hybrid structures with yttrium iron garnet and various metallic materials
(Universidade Federal de Pernambuco, 2015)
Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling
(American Institute of Physics, 2014-03)
We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected toelectrodes and clarify the interplay between ...
Introdução à polarização de spin induzida por corrente
(Universidade Federal de UberlândiaBrasilFísica de Materiais, 2022)
Efeito hall de spin inverso em multicamadas de Ta/NiFe/FeMn/Ta
(Universidade Federal de Santa MariaBrasilFísicaUFSMPrograma de Pós-Graduação em FísicaCentro de Ciências Naturais e Exatas, 2017-10-27)
In the present thesis, the generation of a dc voltage in exchange-biased Ta/NiFe/FeMn/Ta
multilayers at ferromagnetic resonance was investigated. This dc signal is related to two distinct
phenomena, namely, the spin ...
Dynamical twisting and the b ghost in the pure spinor formalism
(2013-07-26)
After adding an RNS-like fermionic vector ψ m to the pure spinor formalism, the non-minimal b ghost takes a simple form similar to the pure spinor BRST operator. The N=2 superconformal field theory generated by the b ghost ...
Dynamical twisting and the b ghost in the pure spinor formalism
(2013-07-26)
After adding an RNS-like fermionic vector ψ m to the pure spinor formalism, the non-minimal b ghost takes a simple form similar to the pure spinor BRST operator. The N=2 superconformal field theory generated by the b ghost ...
Magnetorresistência perturbativa e estudo de fenômenos da caloritrônica de Spin em nanoestruturas magnéticas
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2019-06-07)
In this work has been realized studies in thin magnetic films with the purpose of
approaching two lines of investigation: (a) the understanding of mechanisms of interaction
in coupled ferromagnetic/antiferromagnetic ...