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Current-induced antiferromagnetic (AFM) switching remains critical in spintronics, yet the interplay between thermal effects and spin torques still lacks clear clarification. Here we experimentally investigate the thermally interplayed…

介观与纳米尺度物理 · 物理学 2024-10-18 Wenlong Cai , Zanhong Chen , Yuzhang Shi , Daoqian Zhu , Guang Yang , Ao Du , Shiyang Lu , Kaihua Cao , Hongxi Liu , Kewen Shi , Weisheng Zhao

We present theoretical description of the precessional switching processes induced by simultaneous application of spin-polarized current and external magnetic field to antiferromagnetic component of the "pinned" layer. We found stability…

其他凝聚态物理 · 物理学 2013-05-29 Helen V. Gomonay , Vadim M. Loktev

We investigate the spin-transfer torque in a magnetic multilayer structure by means of a spin-diffusion model. The torque in the considered system, consisting of two magnetic layers separated by a conducting layer, is caused by a…

We develop a comprehensive description of static and dynamic spin-transfer torque at interfaces between a normal metal and a magnetic material. Specific examples of the latter include ferromagnets, collinear and noncollinear…

介观与纳米尺度物理 · 物理学 2017-09-13 Yaroslav Tserkovnyak , Hector Ochoa

The exchange interaction between the conduction electrons and magnetic moments at magnetic interface leads to mutual conversion between electron spin current and magnon current. We introduce a concept of spin convertance which…

介观与纳米尺度物理 · 物理学 2013-02-08 Steven S. -L. Zhang , Shufeng Zhang

According to the spin-torque model, current-driven magnetic dynamics in ferromagnetic multilayers is determined by the transfer of electron spin perpendicular to the layers' magnetizations. By separating the largest contributions to the…

材料科学 · 物理学 2007-05-23 S. Urazhdin

We present new mechanism for manipulation of the spin-wave amplitude through the use of the dynamic charge-mediated magnetoelectric effect in ultrathin multilayers composed of dielectric thin-film capacitors separated by a ferromagnetic…

介观与纳米尺度物理 · 物理学 2020-01-22 Piotr Graczyk , Maciej Krawczyk

Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful tool to generate complex magnetic textures, interconvert charge and spin under applied current, and control magnetization dynamics.…

介观与纳米尺度物理 · 物理学 2019-10-02 A. Manchon , J. Zelezný , I. M. Miron , T. Jungwirth , J. Sinova , A. Thiaville , K. Garello , P. Gambardella

There exists a significant challenge in developing efficient magnetic tunnel junctions with low write currents for non-volatile memory devices. With the aim of analysing potential materials for efficient current-operated magnetic junctions…

介观与纳米尺度物理 · 物理学 2017-12-13 Matthew O. A. Ellis , Maria Stamenova , Stefano Sanvito

Microscopic theory of domain wall dynamics under electric current is reviewed. Domain wall is treated as rigid and planar. The spin-transfer torque and forces on the wall are derived based on the $s$-$d$ exchange interaction between…

介观与纳米尺度物理 · 物理学 2009-11-13 Gen Tatara , Hiroshi Kohno , Junya Shibata

Large heat currents are obtained in Co/Cu/Co spin valves positioned at the middle of Cu nanowires. The second harmonic voltage response to an applied current is used to investigate the effect of the heat current on the switching of the spin…

介观与纳米尺度物理 · 物理学 2015-03-13 Haiming Yu , Simon Granville , Dapeng Yu , Jean-Philippe Ansermet

Magnetic domain walls can be moved by spin-polarized currents due to spin-transfer torques. This opens the possibility to use them in spintronic memory devices as, e.g., in racetrack storage. Naturally, in miniaturized devices domain walls…

介观与纳米尺度物理 · 物理学 2019-09-04 Martin Stier , Jennifer Erdmann , Michael Thorwart

Spin-orbit torques, which utilize spin currents arising from the spin-orbit coupling, offer a novel method to electrically switch the magnetization with perpendicular anisotropy. However, the necessity of an external magnetic field to…

材料科学 · 物理学 2018-07-18 Jong Min Lee , Kaiming Cai , Guang Yang , Yang Liu , Rajagopalan Ramaswamy , Pan He , Hyunsoo Yang

Angular momentum transport in magnetic multilayered structures plays a central role in spintronic physics and devices. The angular momentum currents or spin currents are carried by either quasi-particles such as electrons and magnons, or by…

材料科学 · 物理学 2025-08-04 Kai Chen , Weiwei Lin , C. L. Chien , Shufeng Zhang

Spin transport in magnetic tunnel junctions comprising a single magnetic layer in the presence of interfacial spin-orbit interaction (SOI) is investigated theoretically. Due to the presence of interfacial SOI, a current-driven spin torque…

介观与纳米尺度物理 · 物理学 2015-05-30 A. Manchon

The effects of a weak microwave field in the magnetization dynamics driven by spin-transfer-torque in spin-valves with perpendicular materials have been systematically studied by means of full micromagnetic simulations. In the system we…

介观与纳米尺度物理 · 物理学 2015-05-19 Mario Carpentieri , Giovanni Finocchio , Bruno Azzerboni , Luis Torres

Using irreversible thermodynamics we show that current-induced spin transfer torque within a magnetic domain implies spin pumping of current within that domain. This has experimental implications for samples both with conducting leads and…

其他凝聚态物理 · 物理学 2009-11-13 Wayne M. Saslow

We present a microscopic theory of spin torque due to diffusive spin currents induced by spin accumulation. The obtained expression is a natural extension of the existing one due to 'local' spin currents associated with ordinary electric…

介观与纳米尺度物理 · 物理学 2015-06-12 Kazuhiro Hosono , Junya Shibata , Hiroshi Kohno , Yukio Nozaki

Currents induce magnetization torques via spin-transfer when the spin angular momentum is conserved or via relativistic spin-orbit coupling. Beyond simple models, the relationship between material properties and spin-orbit torques is not…

介观与纳米尺度物理 · 物理学 2013-08-27 Kjetil M. D. Hals , Arne Brataas

Spin-orbit torque facilitates efficient magnetization switching via an in-plane current in perpendicularly magnetized heavy metal/ferromagnet heterostructures. The efficiency of spin-orbit-torque-induced switching is determined by the…