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Low crystal symmetry of magnetic van der Waals materials naturally promotes spin-orbital complexity unachievable in common magnetic materials used for spin-orbit torque switching. Here, using first-principles methods, we demonstrate that an…

Materials Science · Physics 2022-11-09 Tom G. Saunderson , Dongwook Go , Stefan Blügel , Mathias Kläui , Yuriy Mokrousov

Among van der Waals (vdW) layered ferromagnets, Fe3GeTe2 (FGT) is an excellent candidate material to form FGT/heavy metal heterostructures for studying the effect of spin-orbit torques (SOT). Its metallicity, strong perpendicular magnetic…

Mesoscale and Nanoscale Physics · Physics 2019-07-24 Mohammed Alghamdi , Mark Lohmann , Junxue Li , Palani R. Jothi , Qiming Shao , Mohammed Aldosary , Tang Su , Boniface Fokwa , Jing Shi

The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in order to utilize 2D vdW magnets for building spintronic…

Current-induced control of magnetization in ferromagnets using spin-orbit torque (SOT) has drawn attention as a new mechanism for fast and energy efficient magnetic memory devices. Energy-efficient spintronic devices require a spin-current…

Magnetic van der Waals (vdW) materials have attracted massive attention because of their academic interest and application potential for the past few years. Its main advantage is the intrinsic two-dimensionality, enabling much smaller…

Materials Science · Physics 2025-01-08 Jingyuan Cui , Kai-Xuan Zhang , Je-Geun Park

The recent discovery of magnetism in two-dimensional van der Waals systems opens the door to discovering exciting physics. We investigate how a current can control the ferromagnetic properties of such materials. Using symmetry arguments, we…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Øyvind Johansen , Vetle Risinggård , Asle Sudbø , Jacob Linder , Arne Brataas

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

The manipulation of magnetic properties using either electrical currents or gate bias is the key of future high-impact nanospintronics applications such as spin-valve read heads, non-volatile logic, and random-access memories. The current…

Applied Physics · Physics 2021-08-25 R. C. Sahoo , Dinh Loc Duong , Jungbum Yoon , Pham Nam Hai , Young Hee Lee

Topological insulators (TIs) are a promising class of materials for manipulating the magnetization of an adjacent ferromagnet (FM) through the spin-orbit torque (SOT) mechanism. However, current studies combining TIs with conventional FMs…

Van der Waals (vdW) heterostructure of two-dimensional (2D) quantum materials offers a promising platform for efficient control of magnetization dynamics for non-volatile spin-based devices. However, energy-efficient field-free spin-orbit…

Fe3-xGeTe2 is a layered magnetic van der Waals material of interest for both fundamental and applied research. Despite the observation of intriguing physical properties, open questions exist even on the basic features related to magnetism:…

The control of magnetization by electric current is a rapidly developing area motivated by a strong synergy between breakthrough basic research discoveries and industrial applications in the fields of magnetic recording, magnetic field…

Applied Physics · Physics 2018-09-05 Yucai Li , Kevin William Edmonds , Xionghua Liu , Houzhi Zheng , Kaiyou Wang

The discovery of magnetism in van der Waals (vdW) materials has established unique building blocks for the research of emergent spintronic phenomena. In particular, owing to their intrinsically clean surface without dangling bonds, the vdW…

Electrical switching of magnetization via spin-orbit torque (SOT) is of great potential in fast, dense, energy-efficient nonvolatile magnetic memory and logic technologies. Recently, enormous efforts have been stimulated to investigate…

Materials Science · Physics 2023-04-26 Xin Lin , Lijun Zhu

Femtosecond laser-pulse excitation provides an energy efficient and fast way to control magnetization at the nanoscale, providing great potential for ultrafast next-generation data manipulation and nonvolatile storage devices. Ferromagnetic…

The discovery of an ever increasing family of atomic layered magnetic materials, together with the already established vast catalogue of strong spin-orbit coupling (SOC) and topological systems, calls for some guiding principles to tailor…

Materials Science · Physics 2021-10-13 Hidekazu Kurebayashi , Jose H. Garcia , Safe Khan , Jairo Sinova , Stephan Roche

The control of spin current is pivotal for spintronic applications, especially for spin-orbit torque devices. Spin Hall effect (SHE) is a prevalent method to generate spin current. However, it is difficult to manipulate its spin…

Computational Physics · Physics 2021-11-30 Jiaqi Zhou , Jean-Christophe Charlier

Efficiently manipulating the magnetization of van der Waals ferromagnets has attracted considerable interest in developing room-temperature two-dimensional material-based memory and logic devices. Here, taking advantage of the unique…

The discovery of van der Waals (vdW) magnetic materials exhibiting non-trivial and tunable magnetic interactions can give rise to exotic magnetic states, which are not readily attainable with conventional materials. Such vdW magnets can…

Mesoscale and Nanoscale Physics · Physics 2024-10-11 Bing Zhao , Lakhan Bainsla , Soheil Ershadrad , Lunjie Zeng , Roselle Ngaloy , Peter Svedlindh , Eva Olsson , Biplab Sanyal , Saroj P. Dash

Materials with strong spin-orbit coupling and low crystalline symmetry are promising for generating large unconventional spin-orbit torques (SOTs), such as in-plane field-like (FL) torques and out-of-plane damping-like (DL) torques, which…

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