Browsing by Author "Azevedo, A."
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- ItemAddition and subtraction of spin pumping voltages in magnetic hybrid structures(2014) Azevedo, A.; Rodríguez Suárez, Roberto
- ItemBulk magnon spin current theory for the longitudinal spin Seebeck effect(2016) Rezende, S.; Rodríguez Suárez, Roberto; Cunha, R.; López Ortiz, J.; Azevedo, A.
- Itemdc effect in ferromagnetic resonance: Evidence of the spin-pumping effect?(2005) Azevedo, A.; Rodríguez Suárez, Roberto
- ItemDiffusive magnonic spin transport in antiferromagnetic insulators(2016) Rezende, S. M.; Rodríguez Suárez, Roberto; Azevedo, A.
- ItemEfficient spin transport through polyaniline(2017) Rodríguez Suárez, Roberto; Azevedo, A.; Rezende, S.; Felix, J.; Assis, H.; Gomes, J.; Santos, O.; Mendes, J.
- ItemElectrical detection of ferromagnetic resonance in single layers of permalloy : evidence of magnonic charge pumping(2015) Azevedo, A.; Cunha, R. O.; Estrada, F.; Santos, O.; Mendes, J. B. S.; Vilela, L. H.; Rodríguez Suárez, Roberto; Rezende, S. M.
- ItemExploring orbital-charge conversion mediated by interfaces with CuOx through spin-orbital pumping(2024) Santos, E.; Abrao, J. E.; Vieira, A. S.; Mendes, J. B. S.; Rodriguez-Suarez, R. L.; Azevedo, A.We explore the impact of different materials on orbital-charge conversion in heterostructures with a naturally oxidized copper capping layer. Introducing a thin layer of CuOx (3 nm) to the yttrium iron garnet (YIG)/W heterostructure resulted in a notable decrease in signal when employing the spin pumping (SP) technique. This contrasts with prior findings in YIG/Pt, where the addition of CuOx (3 nm) led to a significant signal enhancement. Conversely, the introduction of the same CuOx (3 nm) layer to YIG/Ti (4 nm) structure showed no change in the SP signal. This lack of change is attributed to the fact that Ti, unlike Pt, does not generate an orbital current at the Ti/CuOx interface due to its weaker spin-orbit coupling. Notably, incorporating the CuOx (3 nm) layer on top of Si/Py (5 nm)/Pt (4 nm) structures resulted in a substantial increase in the spin pumping signal. However, in Si/CuOx (3 nm)/Pt (4 nm)/Py (5 nm) structures, the signal exhibited a decrease. Finally, we applied a phenomenological model of the spin (orbital) Hall effect in YIG/heavy-metal systems to refine our data. These discoveries have the potential to advance research in the innovative field of orbitronics and contribute to the development of new technologies based on spin-orbital conversion.
- ItemGiant spin-charge conversion driven by nanoscopic particles of Ag in Pt(2017) Alves, O.; Silva, E.; Gamino, M.; Cunha, R.; Mendes, J.; Rodríguez Suárez, Roberto; Rezende, S.; Azevedo, A.
- ItemIntroduction to antiferromagnetic magnons(2019) Rezende, S.M.; Azevedo, A.; Rodríguez Suárez, Roberto
- ItemInverse spin Hall effect in the semiconductor (Ga,Mn) As at room temperature(2017) Mendes, J.; Mello, S.; Alves Santos, O.; Cunha, R.; Rodríguez Suárez, Roberto; Azevedo, A.; Rezende, S.
- ItemLongitudinal spin Seebeck effect in permalloy separated from the anomalous Nernst effect: Theory and experiment(2017) Holanda, J.; Santos, O.; Cunha, R.; Mendes, J.; Rodríguez Suárez, Roberto; Azevedo, A.; Rezende, S.
- ItemMagnon diffusion theory for the spin seebeck effect in ferromagnetic and antiferromagnetic insulators(2018) Rezende, S.; Azevedo, A.; Rodríguez Suárez, Roberto
- ItemMagnon dispersion relations in the noncollinear antiferromagnet IrMn3(2020) Rezende, S. M.; Mendes, J. B. S.; Maior, D. S.; Abrao, J. E.; Azevedo, A.; Rodríguez Suárez, Roberto
- ItemMagnon-mediated spin currents in Tm3Fe5O12/Pt with perpendicular magnetic anisotropy(2020) Vilela, G. L. S.; Abrao, J. E.; Santos, E.; Yao, Y.; Mendes, J. B. S.; Rodríguez Suárez, Roberto; Rezende, S. M.; Han, W.; Azevedo, A.; Moodera, J. S.
- ItemNonlinear dynamics of three-magnon process driven by ferromagnetic resonance in yttrium iron garnet(2015) Cunha, R.; Holanda, J.; Vilela, L.; Azevedo, A.; Rodríguez Suárez, Roberto; Rezende, S
- ItemRotatable anisotropy on ferromagnetic/antiferromagnetic bilayer investigated by Brillouin light scattering(2018) Rodríguez Suárez, Roberto; Oliveira, A. B.; Estrada, F.; Maior, D. S.; Arana, M.; Santos, O. Alves; Azevedo, A.; Rezende, S. M.
- ItemSimultaneous spin pumping and spin Seebeck experiments with thermal control of the magnetic damping in bilayers of yttrium iron garnet and heavy metals: YIG/Pt and YIG/IrMn(2017) Holanda, J.; Alves Santos, O.; Rodríguez Suárez, Roberto; Azevedo, A.; Rezende, S. M.
- ItemSpin pumping and anisotropic magnetoresistance voltages in magnetic bilayers: Theory and experiment(2011) Azevedo, A.; Rodríguez Suárez, Roberto
- ItemSpin Seebeck effect in the antiferromagnet nickel oxide at room temperature(2017) Holanda, J.; Maior, D. S.; Santos, O. Alves.; Vilela Leao, L. H.; Mendes, J. B. S.; Azevedo, A.; Rodríguez Suárez, Roberto; Rezende, S. M.
- ItemSpin-current to charge-current conversion and magnetoresistance in a hybrid structure of graphene and yttrium iron garnet(2015) Mendes, J. B. S.; Alves Santos, O.; Meireles, L. M.; Lacerda, R. G.; Vilela Leao, L. H.; Machado, F. L. A.; Rodríguez Suárez, Roberto; Azevedo, A.; Rezende, S. M.