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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 ...
Dipolar field effects on the critical current for spin transfer switch of iron and permalloy nanoelements
(AIP Publishing LLC, 2014-02-10)
Current-induced exchange interactions and effective temperature in localized moment systems
(IOP PUBLISHING LTD, 2012-03-21)
We study theoretically the spin dynamics of a magnetic dimer serving as a contact between two electrodes. We find that the spin-spin coupling in the dimer can be dramatically modified from its equilibrium value. We show ...
Scanning tunneling microscope operating as a spin diode
(Amer Physical Soc, 2011-09-19)
We theoretically investigate spin-polarized transport in a system composed of a ferromagnetic scanning-tunneling-microscope (STM) tip coupled to an adsorbed atom (adatom) on a host surface. Electrons can tunnel directly ...
Spin-polarized current and shot noise in the presence of spin flip in a quantum dot via nonequilibrium Green's functions
(AMER PHYSICAL SOC, 2008)
Using nonequilibrium Green's functions we calculate the spin-polarized current and shot noise in a ferromagnet-quantum-dot-ferromagnet system. Both parallel (P) and antiparallel (AP) magnetic configurations are considered. ...
Thermal transport in one-dimensional spin heterostructures
(American Physical Society, 2009-07)
We study heat transport in a one-dimensional inhomogeneous quantum spin-1/2 system. It consists of a finite-size XX spin chain coupled at its ends to semi-infinite XX and XY chains at different temperatures, which play the ...
Current jumps in flat-band ladders with Dzyaloshinskii-Moriya interactions
(American Physical Society, 2020-11-20)
Localized magnons states, due to flat bands in the spectrum, is an intensely studied phenomenon and can be found in many frustrated magnets of different spatial dimensionality. The presence of Dzyaloshinskii-Moriya (DM) ...