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Related papers: Spin current generation from sputtered Y3Fe5O12 fi…

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We report on the epitaxial growth of nm-thick films of bismuth-substituted yttrium iron garnet (BiYIG) by high-temperature off-axis radio-frequency magnetron sputtering. We demonstrate accurate control of the magnetic properties by tuning…

We report the observation of magnetic-field-induced suppression of the spin Peltier effect (SPE) in a junction of a paramagnetic metal Pt and a ferrimagnetic insulator ${\rm Y_{3}Fe_{5}O_{12}}$ (YIG) at room temperature. For driving the…

Materials Science · Physics 2017-11-29 Ryuichi Itoh , Ryo Iguchi , Shunsuke Daimon , Koichi Oyanagi , Ken-ichi Uchida , Eiji Saitoh

We present temporal evolution of the spin Seebeck effect in a YIG|Pt bilayer system. Our findings reveal that this effect is a sub-microseconds fast phenomenon governed by the temperature gradient and the thermal magnons diffusion in the…

We demonstrate that a sizable chiral charge pumping can be achieved at room temperature in graphene/Yttrium Iron Garnet (YIG) bilayer systems. The effect, which cannot be attributed to the ordinary spin pumping, reveals itself in the…

Spin information carried by magnons is attractive for computing technology and the development of magnon-based computing circuits is of great interest. However, magnon transport in insulators has been challenging, different from the clear…

Materials Science · Physics 2017-03-08 X. J. Zhou , G. Y. Shi , J. H. Han , Q. H. Yang , Y. H. Rao , H. W. Zhang , L. L. Lang , S. M. Zhou , F. Pan , C. Song

We formulate a linear response theory of the spin Seebeck effect, i.e., a spin voltage generation from heat current flowing in a ferromagnet. Our approach focuses on the collective magnetic excitation of spins, i.e., magnons. We show that…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Hiroto Adachi , Jun-ichiro Ohe , Saburo Takahashi , Sadamichi Maekawa

We report ferromagnetic resonance in the normal configuration of an electrically insulating magnetic bilayer consisting of two yttrium iron garnet (YIG) films epitaxially grown on both sides of a 0.5-mm-thick nonmagnetic gadolinium gallium…

The formation of the two: injected ("coherent") and "thermally" excited, different in energies magnon subsystems and the influence of its interaction with phonons and between on drag effect under spin Seebeck effect conditions in the…

Other Condensed Matter · Physics 2017-06-08 I. I. Lyapilin , M. S. Okorokov

We show theoretically that stimulated spin flip Raman scattering can be used to inject spin currents in doped semiconductors with spin split bands. A pure spin current, where oppositely oriented spins move in opposite directions, can be…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Ali Najmaie , E. Ya. Sherman , J. E. Sipe

We present a novel process that allows the transfer of monocrystalline yttrium-iron-garnet microstructures onto virtually any kind of substrate. The process is based on a recently developed method that allows the fabrication of freestanding…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 P. Trempler , R. Dreyer , P. Geyer , C. Hauser , G. Woltersdorf , G. Schmidt

Magnon systems used in quantum devices require low damping if coherence is to be maintained. The ferrimagnetic electrical insulator yttrium iron garnet (YIG) has low magnon damping at room temperature and is a strong candidate to host…

Mesoscale and Nanoscale Physics · Physics 2019-10-28 Sandoko Kosen , Arjan F. van Loo , Dmytro A. Bozhko , Laura Mihalceanu , Alexy D. Karenowska

Yttrium Iron Garnet is the prototypical material used to study pure spin currents. It is a complex material with 20 magnetic atoms in the unit cell. Almost all theories and experimental analysis approximates this complicated material to a…

Materials Science · Physics 2016-11-23 Joseph Barker , Gerrit E. W. Bauer

The planar Hall effect of IrMn on an yttrium iron garnet (YIG = Y3Fe5O12) was measured in the magnetic field rotating in the film plane. The magnetic field angle dependence of planar Hall resistance (PHR) has been observed in YIG/IrMn…

Materials Science · Physics 2015-06-23 Xu Zhang

We investigated the effect of an external magnetic field on the diffusive spin transport by magnons in the magnetic insulator yttrium iron garnet (YIG), using a non-local magnon transport measurement geometry. We observed a decrease in…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 L. J. Cornelissen , B. J. van Wees

We experimentally identify coherent spin pumping in the magnon-magnon hybrid modes of permalloy/yttrium iron garnet (Py/YIG) bilayers. Using broadband ferromagnetic resonance, an "avoided crossing" is observed between the uniform mode of Py…

Y3Sc2Ga3O12-Y3Sc2Al3O12 and Y3Sc2Ga3O12-Y3Al5O12 (YSGAG) solid solution single crystals with diameters up to 30 mm and total lengths up to about 100 mm were grown by the conventional Czochralski technique. Rocking curve measurements on…

We experimentally 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. We show that the focal distance…

Mesoscale and Nanoscale Physics · Physics 2020-02-12 B. Divinskiy , N. Thiery , L. Vila , O. Klein , N. Beaulieu , J. Ben Youssef , S. O. Demokritov , V. E. Demidov

We report a study on the electrical properties of 19 nm thick Yttrium Iron Garnet (YIG) films grown by liquid phase epitaxy. The electrical conductivity and Hall coefficient are measured in the high temperature range [300,400]~K using a Van…

We develop a linear-response transport theory of diffusive spin and heat transport by magnons in magnetic insulators with metallic contacts. The magnons are described by a position dependent temperature and chemical potential that are…

Mesoscale and Nanoscale Physics · Physics 2016-07-18 Ludo J. Cornelissen , Kevin J. H. Peters , Rembert A. Duine , Gerrit E. W. Bauer , Bart J. van Wees

We report on the switching of the in-plane magnetization of thin yttrium iron garnet (YIG)/Pt bilayers induced by an electrical current. The switching is either field-induced and assisted by a dc current, or current-induced and assisted by…

Strongly Correlated Electrons · Physics 2019-05-02 Johannes Mendil , Morgan Trassin , Quingquing Bu , Manfred Fiebig , Pietro Gambardella