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相关论文: Surface sensitivity of the spin Seebeck effect

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We report a tunable spin mixing conductance, up to $\pm 22\%$, in a Y${}_{3}$Fe${}_{5}$O${}_{12}$/Platinum (YIG/Pt) bilayer.This control is achieved by applying a gate voltage with an ionic gate technique, which exhibits a gate-dependent…

介观与纳米尺度物理 · 物理学 2019-04-24 Ledong Wang , Zhijian Lu , Jianshu Xue , Peng Shi , Yufeng Tian , Yanxue Chen , Shishen Yan , Lihui Bai , Michael Harder

Competing magnetic interactions in geometrically frustrated magnets give rise to new forms of correlated matter, such as spin liquids and spin ices. Characterizing the magnetic structure of these states has been difficult due to the absence…

We demonstrate using inelastic scanning tunneling spectroscopy (ISTS) and simulations based on density functional theory that the amplitude and sign of the magnetic anisotropy energy for a single Fe atom adsorbed onto the Pt(111) surface…

The inverse Rashba-Edelstein effect (IREE) is a spin conversion mechanism that recently attracts attention in spintronics and condensed matter physics. In this letter, we report an investigation of the IREE in Bi/Ag by using ferrimagnetic…

介观与纳米尺度物理 · 物理学 2017-03-08 Masasyuki Matsushima , Yuichiro Ando , Sergey Dushenko , Ryo Ohshima , Ryohei Kumamoto , Teruya Shinjo , Masashi Shiraishi

We examine substrate-to-film interfacial phonon drag on typical spin Seebeck heterostructures, in particular studying the effect of ferromagnetic magnons on the phonon-electron drag dynamics at the interface. We investigate with high…

材料科学 · 物理学 2018-04-20 Arati Prakash , Jack Brangham , Sarah J. Watzman , Fengyuan Yang , Joseph P. Heremans

The spin Seebeck effect (SSE) refers to the generation of a spin current as a result of a temperature gradient in a magnetic material, which can be detected electrically via the inverse spin Hall effect in a metallic contact. Since the…

材料科学 · 物理学 2023-03-14 Takashi Kikkawa , Eiji Saitoh

We develop a self-consistent theory for current-induced spin wave excitations in normal metal-magnetic insulator bilayer systems, thereby establishing the relation between spin wave excitation and the experimentally controlled parameters.…

介观与纳米尺度物理 · 物理学 2015-06-16 Yan Zhou , Hu-jun Jiao , Yan-ting Chen , Gerrit E. W. Bauer , Jiang Xiao

We show that higher-harmonics exchange scattering from a magnetic adatom on the surface of a three dimensional topological insulator leads to a magnetic anisotropy whose magnitude and sign may be tuned by adjusting the chemical potential of…

介观与纳米尺度物理 · 物理学 2016-10-24 Jens Paaske , Erikas Gaidamauskas

We investigated the depth dependence of current-induced magnetic fields in a bilayer of a normal metal (Au) and a ferrimagnetic insulator (Yttrium Iron Garnet - YIG) by using low energy muon spectroscopy (LE-muSR). This allows us to explore…

材料科学 · 物理学 2017-02-09 A. Aqeel , I. J. Vera-Marun , Z. Salman , T. Prokscha , A. Suter , B. J. van Wees , T. T. M. Palstra

We examine the far-field optical response, under-plane wave excitation in the presence of a static magnetic field, of core-shell nanoparticles involving a gyroelectric component, either as the inner or the outer layer, through analytic…

介观与纳米尺度物理 · 物理学 2020-11-13 P. Elli Stamatopoulou , Vassilios Yannopapas , N. Asger Mortensen , Christos Tserkezis

Effect of uniaxial single-ion anisotropy upon magnetic properties of a mixed spin-1/2 and spin-S (S>=1) Ising model on a bathroom tile (4-8) lattice is examined within the framework of an exact star-triangle mapping transformation. The…

统计力学 · 物理学 2007-05-23 Jozef Strecka

A magnetoresistance effect induced by the Rashba spin-orbit interaction was predicted, but not yet observed, in bilayers consisting of normal metal and ferromagnetic insulator. Here, we present an experimental observation of this new type…

We study propagation of the Gaussian beam of spin waves and its reflection from the edge of thin yttrium-iron-garnet film with in-plane magnetization perpendicular to this edge. We have performed micromagnetic simulations supported by…

介观与纳米尺度物理 · 物理学 2015-08-26 P. Gruszecki , Yu. S. Dadoenkova , N. N. Dadoenkova , I. L. Lyubchanskii , J. Romero-Vivas , K. Y. Guslienko , M. Krawczyk

The exceptional magnetic, optical and phononic properties of Yttrium Iron Garnet (YIG) make it unique for spin-wave based and photonic applications. Yet, nanostructuring crystalline YIG and manipulating its magnetism in a non-destructive…

Materials and systems that exhibit persistent spin texture provide a platform for creating robust spin states that can be used in quantum computing, memory storage, and other advanced technological applications. In this paper we show that…

介观与纳米尺度物理 · 物理学 2025-01-13 Paulina Jureczko , Marko Milivojević , Marcin Kurpas

We study magnon hybridization in a ferrimagnetic heterostructure consisting of ultrathin gadolinium iron garnet and yttrium iron garnet layers and show the localized and extended spatial profiles of the magnon modes with different…

介观与纳米尺度物理 · 物理学 2020-12-30 Song Li , Ka Shen , Ke Xia

Optical conductivity [$\sigma(\omega)$] of YbS has been measured under pressure up to 20 GPa. Below 8 GPa, $\sigma(\omega)$ is low since YbS is an insulator with an energy gap between fully occupied 4$f$ state and unoccupied conduction…

强关联电子 · 物理学 2015-05-13 M. Matsunami , H. Okamura , A. Ochiai , T. Nanba

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…

强关联电子 · 物理学 2019-05-02 Johannes Mendil , Morgan Trassin , Quingquing Bu , Manfred Fiebig , Pietro Gambardella

Spin Hall magnetoresistance (SMR) and magnon excitation magnetoresistance (MMR) that all generate via the spin Hall effect and inverse spin Hall effect in a nonmagnetic material are always related to each other. However, the influence of…

材料科学 · 物理学 2020-03-02 Q. B. Liu , K. K. Meng , S. Q. Zheng , Y. C. Wu , J. Miao , X. G. Xu , Y. Jiang

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 $CuOx(3nm)$ onto yttrium iron garnet $(YIG)/W$ stacks, we…

介观与纳米尺度物理 · 物理学 2024-01-29 E. Santos , J. E. Abrão , A. S. Vieira , J. B. S. Mendes , R. L. Rodríguez-Suárez , A. Azevedo