35 citations · 153 across the 12 of their papers we have counts for
12 papers
Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates
José Elias Abrão, Daan Weltens, Rhodri Mansell +2
The use of spin waves in magnetic thin films at cryogenic temperatures has long been hindered by the lack of a suitable material platform. Yttrium iron garnet (YIG) is the leading…
Positive unidirectional anisotropy in Y3Fe5O12/Ir20Mn80 bilayers
E. C. Souza, P. R. T. Ribeiro, J. E. Abrão +2
We report an experimental study of the unidirectional anisotropy in bilayers made of the important ferrimagnetic insulator yttrium iron garnet (YIG) and the room temperature antife…
Probing the Spin-Momentum Locking in Rashba Surfaces via Spin Current
J. E. Abrão, E. Gomes da Silva, G. Rodrigues-Junior +2
In this work, we explore the intriguing spin-momentum locking phenomenon within the Rashba states of antimony (Sb) films. By combining spin pumping with the flow of an external cha…
Anomalous Spin and Orbital Hall Phenomena in Antiferromagnetic Systems
J. E. Abrão, E. Santos, J. L. Costa +3
We investigate anomalous spin and orbital Hall phenomena in antiferromagnetic (AF) materials via orbital pumping experiments. Conducting spin and orbital pumping experiments on YIG…
Negative orbital Hall effect in Germanium
E. Santos, J. E. Abrao, J. L. Costa +3
Our investigation reveals a groundbreaking discovery of a negative inverse orbital Hall effect (IOHE) in Ge thin films. We employed the innovative orbital pumping technique where s…
Bulk and Interface Effects Based on Rashba-Like States in Ti and Ru Nanoscale-Thick Films: Implications for Orbital-Charge Conversion in Spintronic Devices
Eduardo S. Santos, José E. Abrão, Jefferson L. Costa +8
In this work, employing spin-pumping techniques driven by both ferromagnetic resonance (SP-FMR) and longitudinal spin Seebeck effect (LSSE) to manipulate and direct observe orbital…
Experimental verification of the inverse Anomalous spin Hall effect with perpendicular magnetic anisotropy Materials
J. E. Abrão, A. R. Rodrigues, H. F. Ding +2
In this work, the spin pumping technique was employed to investigate the anomalous inverse spin Hall effect in BIG/NiO/Fe samples where BIG[(Bi,Tm)3(Fe,Ga)5O12] exhibits perpendicu…
Surface-state mediated spin-to-charge conversion in Sb films via bilateral spin current injection
E. Gomes, J. E. Abrão, E. S. Santos +4
The spin-to-charge conversion phenomena is investigated in a trilayer structure consisting of Co(12 nm)/Sb(t)/Py(12 nm), where the thickness t of the antimony layer is varied. Usin…
Exploring orbital-charge conversion mediated by interfaces with copper through spin-orbital pumping
E. Santos, J. E. Abrão, A. S. Vieira +3
We investigated how different materials affect the orbital-charge conversion in heterostructures with the naturally oxidized cooper capping layer. When we added a thin layer of $Cu…
Inverse Orbital Torque via Spin-Orbital Entangled States
E. Santos, J. E. Abrão, Dongwook Go +4
While current-induced torque by orbital current has been experimentally found in various structures, evidence for its reciprocity has been missing so far. Here, we report experimen…
Magnon-mediated spin currents in Tm3Fe5O12/Pt with perpendicular magnetic anisotropy
G. L. S. Vilela, J. E. Abrao, E. Santos +7
The control of pure spin currents carried by magnons in magnetic insulator (MI) garnet films with a robust perpendicular magnetic anisotropy (PMA) is of great interest to spintroni…
Unveiling the polarity of the spin-to-charge current conversion in
J. B. S. Mendes, M. Gamino, R. O. Cunha +3
We report an investigation of the spin- to charge-current conversion in sputter-deposited films of topological insulator onto single crystalline layers of YIG $(Y_{3}F…