Zobrazeno 1 - 10
of 17
pro vyhledávání: '"R. O. Cunha"'
Publikováno v:
Physical Review Materials. 5
We report an investigation of the spin-to-charge current conversion in sputter-deposited films of the topological insulator ${\mathrm{Bi}}_{2}{\mathrm{Se}}_{3}$ onto single crystalline layers of yttrium iron garnet (YIG-${\mathrm{Y}}_{3}{\mathrm{Fe}}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86e0f21f97711030b7db4977c2f6f913
https://doi.org/10.1103/physrevmaterials.5.024206
https://doi.org/10.1103/physrevmaterials.5.024206
Publikováno v:
Journal of Magnetism and Magnetic Materials. 400:171-177
The longitudinal spin Seebeck effect (LSSE) consists in the generation of a spin current parallel to a temperature gradient applied across the thickness of a bilayer made of a ferromagnetic insulator (FMI), such as yttrium iron garnet (YIG), and a me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce161a4f7bac4c6892a5e2e6f0a72508
https://doi.org/10.1016/j.jmmm.2015.07.102
https://doi.org/10.1016/j.jmmm.2015.07.102
Autor:
O. Alves-Santos, R. O. Cunha, R. L. Rodríguez-Suárez, M. Gamino, E. F. Silva, Joaquim Mendes, Antonio Azevedo, Sergio M. Rezende
Publikováno v:
Physical Review B. 96
We report the observation of a giant enhancement in the interconversion efficiency between spin current and charge current by the spin Hall effect made possible with the use of nanoscopic structures of Ag in a Pt layer. We fabricate heterostructures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b931cb85e6e028ec26c640084d7c6837
https://doi.org/10.1103/physrevb.96.060408
https://doi.org/10.1103/physrevb.96.060408
Autor:
J. Holanda, Sergio M. Rezende, O. Alves Santos, R. O. Cunha, Antonio Azevedo, Joaquim Mendes, R. L. Rodríguez-Suárez
Publikováno v:
Physical Review B. 95
The longitudinal spin Seebeck effect (LSSE) consists in the generation of a spin current parallel to a temperature gradient in a magnetic material. The LSSE has only been measured unequivocally in magnetic insulators because in metallic films it is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13ffc54e1a323b15c54b7c375f9146b2
https://doi.org/10.1103/physrevb.95.214421
https://doi.org/10.1103/physrevb.95.214421
Autor:
R. O. Cunha, Sergio M. Rezende, O. Alves Santos, Joaquim Mendes, S. L. A. Mello, R. L. Rodríguez-Suárez, Antonio Azevedo
Publikováno v:
Physical Review B. 95
We report experiments demonstrating that a spin current can be converted into a charge current in a film of the paramagnetic semiconductor (Ga,Mn)As at room temperature by means of the inverse spin Hall effect. The spin currents are generated in a th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::181dd434e334fd4cce48300ad2a50027
https://doi.org/10.1103/physrevb.95.214405
https://doi.org/10.1103/physrevb.95.214405
Publikováno v:
Applied Physics Letters. 115:182407
In this paper, we investigate the spin current to charge current conversion properties of the metallic collinear antiferromagnetic (AF) CuMnAs. Bilayers of Permalloy (Py = Ni81Fe19)/CuMnAs and yttrium iron garnet (YIG = Y3Fe5O13)/CuMnAs were investig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98526f62aeacb876f8e7b40d6991e6f4
https://doi.org/10.1063/1.5121739
https://doi.org/10.1063/1.5121739
Autor:
R. O. Cunha, Luis Gustavo Pereira, M. Heinemann, D.L. Baptista, M.F. Kuhn, Joao Edgar Schmidt
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:3002-3005
We investigate the importance of using nanotips on a point contact spin-transfer torque (STT) experiment. A systematic analysis comparing the STT in a magnetic thin film in current-perpendicular-to-plane (CPP) geometry sample for magnetic coated and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77f891827bc5fec54d9b82370b267d27
https://doi.org/10.1016/j.jmmm.2012.04.043
https://doi.org/10.1016/j.jmmm.2012.04.043
Autor:
L.L.L. Sousa, F.L.A. Machado, F.A.O. Cabral, R. O. Cunha, A.R. Rodrigues, Ricardo Costa de Santana, Jesiel F. Carvalho
Publikováno v:
Journal of Physics and Chemistry of Solids. 71:862-866
The influence of highly diluted impurities (Cu, Mn, Fe, Ni) on the temperature ( T ) dependence of the specific heat ( c p ) of l -arginine phosphate monohydrate (LAP) was investigated in the temperature range 1.8–300 K. The doped samples yielded v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bc11263b2d3ac36f480b534915cee11
https://doi.org/10.1016/j.jpcs.2010.03.034
https://doi.org/10.1016/j.jpcs.2010.03.034
Autor:
K. D. Ferreira, R. O. Cunha, Rafael Calvo, María del Carmen González Santos, Ricardo Costa de Santana, Jesiel F. Carvalho
Publikováno v:
Journal of Physics and Chemistry of Solids. 68:586-593
We investigated the crystal growth, electron paramagnetic resonance (EPR) and optical absorption spectra of L-threonine doped with Cu2+. The quality, size and habit of the single crystals grown from aqueous solution by the slow solvent evaporation an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d34a50e73301eb1ae7f696c0ff19670d
https://doi.org/10.1016/j.jpcs.2007.01.043
https://doi.org/10.1016/j.jpcs.2007.01.043
Autor:
F. Estrada, R. O. Cunha, O. Alves Santos, L. H. Vilela-Leão, Antonio Azevedo, Joaquim Mendes, R. L. Rodríguez-Suárez, Sergio M. Rezende
Publikováno v:
Physical Review B. 92
The generation of a DC voltage in single layers of permalloy (${\mathrm{Ni}}_{81}{\mathrm{Fe}}_{19}$) when the magnetization is undergoing ferromagnetic resonance is investigated in a series of samples with thickness varying from 4.0 to 150 nm. By sw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e11526c25523d67d1e5ea9c57ba860c5
https://doi.org/10.1103/physrevb.92.024402
https://doi.org/10.1103/physrevb.92.024402