English
Related papers

Related papers: Spin-orbit torque switching without external field…

200 papers

The flow of in-plane current through ultrathin magnetic heterostructures can cause magnetization switching or domain wall nucleation owing to bulk and interfacial effects. Within the magnetic layer, the current can create magnetic…

Motivated by recent experiments observing spin-orbit torque (SOT) acting on the magnetization $\vec{m}$ of a ferromagnetic (F) overlayer on the surface of a three-dimensional topological insulator (TI), we investigate the origin of the SOT…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Farzad Mahfouzi , Branislav K. Nikolić , Nicholas Kioussis

We propose a novel concept of obtaining oscillations with frequencies in very-high frequency (VHF) and ultra-high frequency (UHF) bands. A traditional spin torque nano-oscillator (STNO) consists of at least one pinned layer (PL) and one…

Mesoscale and Nanoscale Physics · Physics 2017-06-05 Gaurav Gupta , Zhifeng Zhu , Gengchiau Liang

Spin current and spin torque generation through the spin-orbit interactions in solids, of bulk or interfacial origin, is at the heart of spintronics research. The realization of spin-orbit torque (SOT) driven magnetic dynamics and switching…

Mesoscale and Nanoscale Physics · Physics 2021-03-22 Minh-Hai Nguyen , Chi-Feng Pai

Current-induced spin-orbit torque (SOT) is regarded as a promising mechanism for driving neuromorphic behavior in spin-orbitronic devices. In principle, the strong SOT in heavy metal-based magnetic heterostructure is attributed to the…

Mesoscale and Nanoscale Physics · Physics 2022-05-31 Tian-Yue Chen , Yu-Chan Hsiao , Wei-Bang Liao , Chi-Feng Pai

Current induced spin-orbit torques (SOTs) in ferromagnet/non-magnetic metal heterostructures open vast possibilities to design spintronic devices to store, process and transmit information in a simple architecture. It is a central task to…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 L. Chen , R. Islinger , J. Stigloher , M. M. Decker , M. Kronseder , D. Schuh , D. Bougeard , D. Weiss , C. H. Back

Since the discovery of the spin orbit torque (SOT) induced by spin Hall effect in heavy metals, much effort has been devoted to understanding the mechanism of the charge-to-spin conversion as well as to developing new schemes for high…

Mesoscale and Nanoscale Physics · Physics 2022-04-15 Shengjie Shi , R. A. Buhrman

Topological insulators have attracted great interest as generators of spin-orbit torques (SOTs) in spintronic devices. Bi\textsubscript{1-x}Sb\textsubscript{x} is a prominent topological insulator that has a high charge-to-spin conversion…

Materials Science · Physics 2023-10-06 Federico Binda , Stefano Fedel , Santos Francisco Alvarado , Paul Noël , Pietro Gambardella

The capability of the spin-orbit torque (SOT) generated via phenomena such as the spin Hall effect in heavy metals, in switching the magnetization of an adjacent magnetic material, has been studied extensively over the last decade. The…

Spin-orbit torques (SOTs), which rely on spin current generation from charge current in a nonmagnetic material, promise an energy-efficient scheme for manipulating magnetization in magnetic devices. A critical topic for spintronic devices…

Mesoscale and Nanoscale Physics · Physics 2020-09-28 Yuting Liu , Qiming Shao

Motivated by recent experiments observing a large antidamping spin-orbit torque (SOT) on the surface of a three-dimensional topological insulator, we investigate the origin of the current-induced SOT beyond linear-response theory. We find…

Mesoscale and Nanoscale Physics · Physics 2022-03-02 Yong-Long Zhou , Hou-Jian Duan , Yong-jia Wu , Ming-Xun Deng , Lan Wang , Dimitrie Culcer , Rui-Qiang Wang

Electrical current-induced deterministic magnetization switching in a magnetic multilayer structure without external magnetic field is realized by utilizing interlayer exchange coupling. Two ferromagnetic Co layers, with in-plane and…

Materials Science · Physics 2018-04-04 Yu Sheng , Kevin William Edmonds , Xingqiao Ma , Houzhi Zheng , Kaiyou Wang

Topological insulators (TIs) with spin momentum locked topological surface states (TSS) are expected to exhibit a giant spin-orbit torque (SOT) in the TI/ferromagnet systems. To date, the TI SOT driven magnetization switching is solely…

Write asymmetry, the significantly different write current for high-to-low and low-to-high resistance switching because of natural stochastic behaviors of magnetization, is a fundamental issue in magnetic random-access memory (MRAM). For…

Applied Physics · Physics 2021-10-26 Baiqing Jiang , Dongyang Wu , Qianwen Zhao , Kaihua Lou , Yuelei Zhao , Yan Zhou , C. Tian , Chong Bi

Spin-orbit torques (SOTs) generated in SOT-material/ferromagnet structures are classified as damping-like (DL) and field-like (FL) torques for current-driven magnetization switching. It is well known that both DL- and FL-SOTs originate from…

Applied Physics · Physics 2025-04-15 Hanying Zhang , Ziqian Cui , Baiqing Jiang , Yuan Wang , C. Bi

In this article we analyze by modeling two possible mechanisms for magnetization switching using spin orbit torques, which have been reported to cause field-free deterministic switching in experiments. Here we compare the field-free…

Mesoscale and Nanoscale Physics · Physics 2020-04-22 F. Garcia-Sanchez , G. Soares , M. Pasquale

Spin-orbit torque (SOT)-based perpendicularly magnetized memory devices with multistate memory have garnered significant interest due to their applicability in low-power in-memory analog computing. However, current methods are hindered by…

Mesoscale and Nanoscale Physics · Physics 2024-10-08 Raghvendra Posti , Chirag Kalouni , Dhananjay K Tiwari , Debangsu Roy

Current-induced spin torques are of great interest to manipulate the orientation of nanomagnets without applying external magnetic fields. They find direct application in non-volatile data storage and logic devices, and provide insight into…

Spin-orbit torques (SOTs) from transition metal dichalcogenides systems (TMDs) in conjunction with ferromagnetic materials are recently attractive in spintronics for their versatile features. However, most of the previously studied…

Mesoscale and Nanoscale Physics · Physics 2021-04-13 Cheng-Wei Peng , Wei-Bang Liao , Tian-Yue Chen , Chi-Feng Pai

We study inserting Co layer thickness-dependent spin transport and spin-orbit torques (SOTs) in the Pt/Co/Py trilayers by spin-torque ferromagnetic resonance. The interfacial perpendicular magnetic anisotropy energy density ($K_s =…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Wenqiang Wang , Kaiyuan Zhou , Xiang Zhan , Zui Tao , Qingwei Fu , Like Liang , Zishuang Li , Lina Chen , Chunjie Yan , Haotian Li , Tiejun Zhou , Ronghua Liu