Inverse Spin Hall Effect in nanometer-thick YIG/Pt system
O. d'Allivy Kelly,A. Anane,R. Bernard,J. Ben Youssef,Christian Hahn,A-H. Molpeceres,C. Carrétéro,Eric Jacquet,C. Deranlot,P. Bortolotti,R. Lebourgois,J-C. Mage,G. de Loubens,O. Klein,Vicent Cros,A.R. Fert +15 more
TLDR
Inverse spin Hall effect (ISHE) detection of propagating spin waves using Pt. as discussed by the authors has been shown to correlate well with the increase of the Gilbert damping when decreasing thickness of YIG.Abstract:
High quality nanometer-thick (20 nm, 7 nm and 4 nm) epitaxial YIG films have been grown on GGG substrates using pulsed laser deposition. The Gilbert damping coefficient for the 20 nm thick films is 2.3 x 10-4 which is the lowest value reported for sub-micrometric thick films. We demonstrate Inverse spin Hall effect (ISHE) detection of propagating spin waves using Pt. The amplitude and the lineshape of the ISHE voltage correlate well to the increase of the Gilbert damping when decreasing thickness of YIG. Spin Hall effect based loss-compensation experiments have been conducted but no change in the magnetization dynamics could be detected.read more
Citations
More filters
Journal ArticleDOI
Spin-transfer torque based damping control of parametrically excited spin waves in a magnetic insulator
Viktor Lauer,Dmytro A. Bozhko,Dmytro A. Bozhko,Thomas Brächer,Philipp Pirro,Vitaliy I. Vasyuchka,Alexander A. Serga,Matthias B. Jungfleisch,Milan Agrawal,Yu. V. Kobljanskyj,Gennadii A. Melkov,Carsten Dubs,Burkard Hillebrands,Andrii V. Chumak +13 more
TL;DR: In this paper, the authors measured the spin-wave relaxation frequency via the threshold of the parametric instability measured by Brillouin light scattering (BLS) spectroscopy, and achieved a variation in the relaxation frequency of +/- 7.5% for an applied dc current density of 5*10^10 A/m^2.
Dissertation
Untersuchung magnetischer Materialien mit Methoden der Ferromagnetischen Resonanz
TL;DR: In this paper, the Spin-Pumpen Effekt in ferromagnetischen and ferrimagnetisches materialien and dynamical magnetisierung in kleinen nanometergrosen zylindrischen py-Scheiben was investigated.
Journal ArticleDOI
The role of iron in magnetic damping of Mg(Al,Fe)2O4 spinel ferrite thin films
Jacob J. Wisser,Jacob J. Wisser,Lauren Riddiford,Lauren Riddiford,Aaron Altman,Peng Li,Satoru Emori,Padraic Shafer,Christoph Klewe,Alpha T. N'Diaye,Elke Arenholz,Yuri Suzuki,Yuri Suzuki +12 more
TL;DR: In this paper, the authors investigated the optimal iron content to obtain high crystalline quality thin films with the low magnetic damping required for spin current-based applications and found that the x = 1.4 − 1.5 composition minimizes the room-temperature magnetic dampness with a typical Gilbert damping parameter of α eff = (1.8 − 6 ) × 10 − 3.
Journal ArticleDOI
Spin Seebeck effect in nanometer-thick YIG micro-fabricated strips
TL;DR: In this paper, the spin Seebeck effect (SSE) generated by current induced-heating in ultra-thin yttrium iron garnet film (20 nm) covered by an 8 nm thick Pt layer was investigated.
Journal ArticleDOI
Sub-micrometer near-field focusing of spin waves in ultrathin YIG films
B. Divinskiy,N. Thiery,Laurent Vila,Olivier Klein,Nathan Beaulieu,J. Ben Youssef,Sergej O. Demokritov,Vladislav E. Demidov +7 more
TL;DR: In this article, the authors demonstrate tight focusing of a spin wave beam excited in extended nanometer-thick films of yttrium iron garnet by a simple microscopic antenna functioning as a single-slit near-field lens.
References
More filters
Journal ArticleDOI
Spin Hall Effect
TL;DR: In this paper, it is proposed that when a charge current circulates in a paramagnetic metal, a transverse spin imbalance will be generated, giving rise to a spin Hall voltage, in the absence of charge current and magnetic field.
Journal ArticleDOI
Conversion of spin current into charge current at room temperature: Inverse spin-Hall effect
TL;DR: In this article, a pure spin current was injected into a Pt thin film using spin pumping, and it was observed to generate electromotive force transverse to the spin current, consistent with the spin-Hall effect.
Spin Hall Effect
TL;DR: In this article, it is proposed that when a charge current circulates in a paramagnetic metal, a transverse spin imbalance will be generated, giving rise to a spin Hall voltage, in the absence of charge current and magnetic field.
Journal ArticleDOI
Transmission of electrical signals by spin-wave interconversion in a magnetic insulator
Y. Kajiwara,Kazuya Harii,Saburo Takahashi,Jun-ichiro Ohe,Ken-ichi Uchida,Masaki Mizuguchi,H. Umezawa,H. Kawai,Kazuya Ando,Kazuya Ando,Koki Takanashi,Sadamichi Maekawa,Eiji Saitoh,Eiji Saitoh,Eiji Saitoh +14 more
TL;DR: It is shown that a spin wave in an insulator can be generated and detected using spin-Hall effects, which enable the direct conversion of an electric signal into aspin wave, and its subsequent transmission through (and recovery from) an insulators over macroscopic distances.
Journal ArticleDOI
Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
TL;DR: Using spin torque induced ferromagnetic resonance with a β-W/CoFeB bilayer microstrip, the spin Hall angle was determined to be |θSHβ-W|=0.30±0.02 as mentioned in this paper.