Algebraic decay of the nonadiabaticity arising through chiral spin transfer torque in magnetic domain walls with Rashba spin-orbit interaction

D. Wang; Yan Zhou

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Algebraic decay of the nonadiabaticity arising through chiral spin transfer torque in magnetic domain walls with Rashba spin-orbit interaction

机译：通过具有Rashba旋转轨道互动的磁畴壁上的手性旋转转移扭矩产生的非等压的代数衰减

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Spin transfer torque in a two-dimensional electron gas system without space inversion symmetry was theoretically investigated by solving the Pauli-Schroedinger equation for the itinerant electrons inside magnetic domain walls. Due to the presence of the Rashba spin-orbit coupling induced by the broken inversion symmetry, the spin transfer torque is chiral and the nonadiabaticity. which is defined to measure the relative importance of the nonadiabatic fieldlike torque to the adiabatic dampinglike torque, exhibits an inverse power-law decay as the domain wall width is increased. This algebraic decay is much slower than the exponential decay observed for systems without the Rashba spin-orbit coupling, and may find applications in innovative design of spintronic devices utilising magnetic topological textures such as magnetic domain walls and skyrmions.

机译：通过求解磁畴壁的潮汐电子的Pauli-Schroedinger方程，理论上研究了无空速对称的二维电子气体系统中的自旋转移扭矩。由于破碎反转对称引起的Rashba旋转轨道耦合，旋转转移扭矩是手性和非等值性。它被定义为测量非等压型扭矩对绝热阻尼扭矩的相对重要性，随着畴壁宽度的增加而表现出反向动力法衰减。该代数衰减比没有Rashba旋转轨道耦合的系统所观察到的指数衰减，并且可以在利用磁畴壁和臭虫等磁性拓扑纹理的磁性拓扑纹理的创新设计中找到应用。

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《Physical review》 |2020年第18期|184428.1-184428.7|共7页
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D. Wang; Yan Zhou;
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College of Engineering Physics Shenzhen Technology University Guangdong 518118 People's Republic of China;

School of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 People's Republic of China;

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1. Algebraic decay of the nonadiabaticity arising through chiral spin transfer torque in magnetic domain walls with Rashba spin-orbit interaction [J] . Wang D., Zhou Yan Physical review, B . 2020,第18期

机译：通过具有Rashba旋转轨道互动的磁畴壁上的手性旋转转移扭矩产生的非等压的代数衰减
2. Scaling of the Rashba spin-orbit torque in magnetic domain walls [J] . Wang D., Zhou Yan Journal of magnetism and magnetic materials . 2020,第Jana期

机译：磁畴壁中Rashba自旋轨道扭矩的缩放
3. Topological damping Rashba spin-orbit torque in ballistic magnetic domain walls [J] . D. Wang, Yan Zhou Physical review . 2020,第2期

机译：弹道磁畴壁中的拓扑阻尼Rashba自旋轨道转矩
4. Characteristics of Dispersion and Transport of Spin-Polarized Electrons in a Quantum Wire with Rashba Spin-Orbit Interaction and Inhomogeneous Magnetic Fields [C] . Ben-Yuan Gu, Hui Su, American Institute of Physics International Conference on Low Temperature Physics . 2005

机译：用Rashba旋转轨道相互作用和不均匀磁场旋转旋转电子在量子丝中的分散和传输特性
5. Spin torque and interactions in ferromagnetic semiconductor domain walls [D] . Golovatski, Elizabeth Ann 2011

机译：自旋扭矩及其在铁磁半导体畴壁中的相互作用
6. Antiferromagnetic domain wall motion driven by spin-orbit torques [O] . Takayuki Shiino, Se-Hyeok Oh, Paul M. Haney, -1

机译：自旋轨道转矩驱动的反铁磁畴壁运动
7. Scaling of the Rashba spin-orbit torque in magnetic domain walls [O] . D. Wang, Yan Zhou 2020

机译：磁畴壁中的Rashba旋转轨道扭矩的缩放

Algebraic decay of the nonadiabaticity arising through chiral spin transfer torque in magnetic domain walls with Rashba spin-orbit interaction

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