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相关论文: Thermographic measurements of spin-current-induced…

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A microscopic theory of the spin Peltier effect in a bilayer structure comprising a paramagnetic metal (PM) and a ferromagnetic insulator (FI) based on the nonequilibrium Green's function method is presented. Spin current and heat current…

介观与纳米尺度物理 · 物理学 2017-10-18 Y. Ohnuma , M. Matsuo , S. Maekawa

When a charge current is applied to a junction comprising two different conductors, its temperature increases or decreases depending on the direction of the charge current. This phenomenon is called the Peltier effect, which is used in…

介观与纳米尺度物理 · 物理学 2016-12-30 Shunsuke Daimon , Ryo Iguchi , Tomosato Hioki , Eiji Saitoh , Ken-ichi Uchida

The Peltier coefficient describes the amount of heat that is carried by an electrical current when it passes through a material. Connecting two materials with different Peltier coefficients causes a net heat flow towards or away from the…

介观与纳米尺度物理 · 物理学 2012-04-02 J. Flipse , F. L. Bakker , A. Slachter , F. K. Dejene , B. J. van Wees

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…

材料科学 · 物理学 2017-11-29 Ryuichi Itoh , Ryo Iguchi , Shunsuke Daimon , Koichi Oyanagi , Ken-ichi Uchida , Eiji Saitoh

Searching for novel spin caloric effects in antiferromagnets we study the properties of thermally activated magnons in the presence of an external spin current and temperature gradient. We predict the spin Peltier effect -- generation of a…

介观与纳米尺度物理 · 物理学 2018-07-04 Olena Gomonay , Kei Yamamoto , Jairo Sinova

Spin-mediated charge-to-heat current conversion phenomena, i.e., the anomalous Ettingshausen effect (AEE) and the anisotropic magneto-Peltier effect (AMPE), have been investigated in various ferromagnetic Ni-Fe, Ni-Pt, Ni-Pd, and Fe-Pt…

材料科学 · 物理学 2020-04-01 Asuka Miura , Ryo Iguchi , Takeshi Seki , Koki Takanashi , Ken-ichi Uchida

The inverse spin Hall effect used for detection of spin currents was observed by voltage measurements in bilayers of normal metal (NM)/ferromagnetic metal (FM), using Nb, Mo and Bi as normal metal and Permalloy (Py, Ni$_{81}$Fe$_{19}$) as…

介观与纳米尺度物理 · 物理学 2024-03-28 David Ley Dominguez , Jose Andres Matutes Aquino

The short timescale spin dynamics in antiferromagnets is an attractive feature from the standpoint of ultrafast spintronics. Yet generating highly polarized spin currents at room temperature remains a fundamental challenge for…

材料科学 · 物理学 2021-11-15 Ruixiang Fei , Wenshen Song , Lauren Pusey-Nazzaro , Li Yang

Co$_{3}$Sn$_{2}$S$_{2}$ (CSS) is one of the shandite compounds and becomes a magnetic Weyl semimetal candidate below the ferromagnetic phase transition temperature ($\textit{T}_\textrm{C}$). In this paper, we investigate the temperature…

介观与纳米尺度物理 · 物理学 2023-04-04 Takeshi Seki , Yong-Chang Lau , Junya Ikeda , Kohei Fujiwara , Akihiro Ozawa , Satoshi Iihama , Kentaro Nomura , Atsushi Tsukazaki

We have studied spin orbit torque in heavy metal (HM)/ferromagnetic metal (FM) bilayers using magneto-optical Kerr effect. A double modulation technique is developed to separate signals from spin orbit torque and Joule heating. At a current…

介观与纳米尺度物理 · 物理学 2018-11-20 Yukihiro Marui , Masashi Kawaguchi , Masamitsu Hayashi

An electric current flowing in a ferromagnetic metal carries spin angular momentum, i.e. it is spin-polarized. Here, we measure the spin-wave Doppler shift induced by the transfer of angular momentum from the diffusive spin-polarized…

We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The flow of alternating current through a Pt/NiFe bilayer generates an oscillating…

介观与纳米尺度物理 · 物理学 2015-05-20 Luqiao Liu , Takahiro Moriyama , D. C. Ralph , R. A. Buhrman

We report electric detection of the spin Peltier effect (SPE) in a bilayer consisting of a Pt film and a Y$_{3}$Fe$_5$O$_{12}$ (YIG) single crystal at the cryogenic temperature $T$ as low as 2 K based on a RuO$_2$$-$AlO$_x$ on-chip…

介观与纳米尺度物理 · 物理学 2023-11-06 Takashi Kikkawa , Haruka Kiguchi , Alexey A. Kaverzin , Ryo Takahashi , Eiji Saitoh

Spin pumping is a mechanism that generates spin currents from ferromagnetic resonance (FMR) over macroscopic interfacial areas, thereby enabling sensitive detection of the inverse spin Hall effect that transforms spin into charge currents…

其他凝聚态物理 · 物理学 2015-05-20 O. Mosendz , V. Vlaminck , J. E. Pearson , F. Y. Fradin , G. E. W. Bauer , S. D. Bader , A. Hoffmann

We report a systematic study of current-induced perpendicular magnetization switching in W/Co$_{x}$Tb$_{1-x}$/Al thin films with strong perpendicular magnetic anisotropy. Various Co$_{x}$Tb$_{1-x}$ ferrimagnetic alloys with different…

The low power manipulation of magnetization is currently a highly sought-after objective in spintronics. Non ferromagnetic large spin-orbit coupling heavy metal (NM) / ferromagnet (FM) heterostructures offer interesting elements of response…

The spin Peltier effect (SPE), heat-current generation due to spin-current injection, in various metal (Pt, W, and Au single layers and Pt/Cu bilayer)/ferrimagnetic insulator (yttrium iron garnet: YIG) junction systems has been investigated…

材料科学 · 物理学 2017-07-26 Shunsuke Daimon , Ken-ichi Uchida , Ryo Iguchi , Tomosato Hioki , Eiji Saitoh

Inverse spin Hall effect (ISHE) allows the conversion of pure spin current into charge current in nonmagnetic materials (NM) due to spin-orbit interaction (SOI). In ferromagnetic materials (FM), SOI is known to contribute to anomalous Hall…

介观与纳米尺度物理 · 物理学 2015-06-12 Ayaka Tsukahara , Yuichiro Ando , Yuta Kitamura , Hiroyuki Emito , Eiji Shikoh , Michael P. Delmo , Teruya Shinjo , Masashi Shiraishi

We employ the non-equilibrium thermodynamics of currents and forces to describe the heat transport caused by a spin current in a Pt/YIG bilayer. By starting from the constitutive equations of the magnetization currents in both Pt and YIG,…

We investigated the self-induced inverse spin Hall effect in ferromagnets. Temperature (T), thickness (t) and angular-dependent measurements of transverse voltage in spin pumping experiments were performed with permalloy films. Results…

介观与纳米尺度物理 · 物理学 2019-11-07 O. Gladii , L. Frangou , A. Hallal , R. L. Seeger , P. Noel , G. Forestier , S. Auffret , M. Rubio-Roy , P. Warin , L. Vila , S. Wimmer , H. Ebert , S. Gambarelli , M. Chshiev , V. Baltz
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