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Related papers: Deep Learning for Spin-Orbit Torque Characterizati…

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Understanding the evolution of spin-orbit torque (SOT) with increasing heavy-metal thickness in ferromagnet/normal metal (FM/NM) bilayers is critical for the development of magnetic memory based on SOT. However, several experiments have…

Mesoscale and Nanoscale Physics · Physics 2018-07-11 Andrew J. Berger , Eric R. J. Edwards , Hans T. Nembach , Olof Karis , Mathias Weiler , T. J. Silva

We review recent advances in machine learning (ML) force-field methods for Landau-Lifshitz-Gilbert (LLG) simulations of itinerant electron magnets, focusing on scalability and transferability. Built on the principle of locality, a deep…

Strongly Correlated Electrons · Physics 2026-02-23 Gia-Wei Chern , Yunhao Fan , Sheng Zhang , Puhan Zhang

We measured the spin-orbit torques (SOTs), current-induced switching, and domain wall (DW) motion in synthetic ferrimagnets consisting of Co/Tb layers with differing stacking order grown on a Pt underlayer. We find that the SOTs, magnetic…

Materials Science · Physics 2022-06-06 Mickey Martini , Can Onur Avci , Silvia Tacchi , Charles-Henri Lambert , Pietro Gambardella

Spin-polarized currents can transfer spin angular momentum to a ferromagnet, generating a torque that can efficiently reorient its magnetization. Achieving quantitative measurements of the spin-transfer-torque vector in magnetic tunnel…

Other Condensed Matter · Physics 2015-05-13 J. C. Sankey , Y. -T. Cui , R. A. Buhrman , D. C. Ralph , J. Z. Sun , J. C. Slonczewski

In this paper we present an overview of recent progress made in the understanding of the spin-torque induced magnetization dynamics in nanodevices using mesoscopic micromagnetic simulations. We first specify how a spin-torque term may be…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 D. V. Berkov , J. Miltat

We propose a simple scheme for magnetic angular position sensor based on current-induced spin-orbit torque effect. A full range detection of 360o is realized with a pair of Hall crosses made of heavy metal/ferromagnet heterostructures. The…

Materials Science · Physics 2018-08-01 Ziyan Luo , Yanjun Xu , Yumeng Yang , Yihong Wu

Spin-orbit torque in heavy metal/ferromagnet heterostructures with broken spatial inversion symmetry provides an efficient mechanism for manipulating magnetization using a charge current. Here, we report the presence of a spin torque in a…

Mesoscale and Nanoscale Physics · Physics 2019-05-29 Ziyan Luo , Qi Zhang , Yanjun Xu , Yumeng Yang , Xinhai Zhang , Yihong Wu

Understanding the nonlinear dynamics of magnetic vortices in spin-torque vortex oscillators (STVOs) is essential for their application in neuromorphic computing. Conventional modeling approaches either rely on the standard Thiele equation,…

Mesoscale and Nanoscale Physics · Physics 2025-10-20 Colin Ducarme , Simon De Wergifosse , Flavio Abreu Araujo

The application of twist engineering in van der Waals magnets has opened new frontiers in the field of two-dimensional magnetism, yielding distinctive magnetic domain structures. Despite the introduction of numerous theoretical methods,…

Strongly Correlated Electrons · Physics 2024-06-21 Woo Seok Lee , Taegeun Song , Kyoung-Min Kim

We report field- and current-induced domain wall (DW) depinning experiments in Ta/Co20Fe60B20/MgO nanowires through a Hall cross geometry. While purely field-induced depinning shows no angular dependence on in-plane fields, the effect of…

In recent years, there has been a growing interest in spin-orbit torques (SOTs) for manipulating the magnetization in nonvolatile magnetic memory devices. SOTs rely on the spin-orbit coupling of a nonmagnetic material coupled to a…

Mesoscale and Nanoscale Physics · Physics 2020-11-19 Jan Hidding , Marcos H. D. Guimarães

In the last few years, some ideas of electric manipulations in ferromagnetic heterostructures have been proposed for developing next generation spintronic devices. Among them, the magnetization switching driven by spin-orbit torque (SOT) is…

Materials Science · Physics 2019-03-27 P. F. Liu , J. Miao , Q. Liu , Z. D. Xu , Z. Y. Ren , K. K. Meng , Y. Wu , J. K. Chen , X. G. Xu , Y. Jiang

We have employed complete micromagnetic simulations to analyze dc current driven self-oscillations of a vortex core in a spin-valve nanopillar in a perpendicular field by including the coupled effect of the spin-torque and the magnetostatic…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 G. Finocchio , V. S. Pribiag , L. Torres , R. A. Buhrman , B. Azzerboni

The technique of conventional ferromagnet/heavy-metal spin-orbit torque (SOT) offers significant potential for enhancing the efficiency of magnetic memories. However, it faces fundamental physical limitations, including hunting effects from…

We introduce a method for a combined calculation of charge and vector spin transport of elastically tunneling electrons in magnetic scanning tunneling microscopy (STM). The method is based on the three-dimensional Wentzel-Kramers-Brillouin…

Materials Science · Physics 2016-09-28 Krisztián Palotás , Gábor Mándi , László Szunyogh

We develop a torque-pitch control framework using deep reinforcement learning for wind turbines to optimize the generation of wind turbine energy while minimizing operational noise. We employ a double deep Q-learning, coupled to a blade…

Systems and Control · Electrical Eng. & Systems 2024-07-19 Martín de Frutos , Oscar A. Marino , David Huergo , Esteban Ferrer

Accurate quantification of the spin-orbit torques (SOTs) is critical for the identification and applications of new spin-orbitronic effects. One of the most popular techniques to qualify the SOTs is the switching angle shift, where the…

Mesoscale and Nanoscale Physics · Physics 2025-09-10 Xiaomiao Yin , Guanglei Han , Guowen Gong , Jun Kang , Changmin Xiong , Lijun Zhu

Complex spin-spin interactions in magnets can often lead to magnetic superlattices with complex local magnetic arrangements, and many of the magnetic superlattices have been found to possess non-trivial topological electronic properties.…

Materials Science · Physics 2023-06-05 Yang Zhong , Binhua Zhang , Hongyu Yu , Xingao Gong , Hongjun Xiang

We present a comprehensive set of harmonic resistance measurements of the dampinglike (DL) and fieldlike (FL) torques in Pt/CoFeB, Pt/Co, W/CoFeB, W/Co, and YIG/Pt bilayers complemented by measurements of the DL torque using the…