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Related papers: Microscopic Origin of Spin-Orbit Torque in Ferroma…

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Circulating orbital currents, originating from the spin-orbit interaction, are calculated for semiconductor nanostructures in the shape of spheres, disks, spherical shells and rings for the electron ground state with spin oriented along a…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 J. van Bree , A. Yu. Silov , P. M. Koenraad , M. E. Flatté

Arising from the interplay between charge, spin and orbital of electrons, spin-orbit torque (SOT) has attracted immense interest in the past decade. Despite vast progress, the existing quantification methods of SOT still have their…

Materials Science · Physics 2019-11-18 Huanglin Yang , Huanjian Chen , Meng Tang , Shuai Hu , Xuepeng Qiu

We unveil a hitherto concealed spin-orbit torque mechanism driven by orbital degrees of freedom in centrosymmetric two-dimensional transition metal dichalcogenides (focusing on PtSe${}_2$ ). Using first-principles simulations, tight-binding…

Mesoscale and Nanoscale Physics · Physics 2023-07-28 Luis M. Canonico , Jose H. García , Stephan Roche

When a flow of electron passes through a paramagnetic layer with strong spin-orbit-coupling such as platinum (Pt), a net spin current is produced via spin Hall effect (SHE). This spin current can exert a torque on the magnetization of an…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 M. R. Hajiali , S. Morteza Mohseni , L. Jamilpanah , M. Hamdi , S. E. Roozmeh , S. Majid. Mohseni

Magnetization reversal of a perpendicular ferromagnetic free layer by spin-orbit torque (SOT) is an attractive alternative to spin-transfer torque (STT) switching in magnetic random-access memory (MRAM) where the write process involves…

Mesoscale and Nanoscale Physics · Physics 2015-11-19 Yong-Chang Lau , Davide Betto , Karsten Rode , JMD Coey , Plamen Stamenov

In this paper, we investigate theoretically the spin-orbit torque as well as the Gilbert damping for a two band model of a 2D helical surface state with a Ferromagnetic (FM) exchange coupling. We decompose the density matrix into the Fermi…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 Farzad Mahfouzi , Nicholas Kioussis

We compute spin-orbit torques (SOTs) in strained PtMnSb from first principles. We consider both tetragonal strain and shear strain. We find a strong linear dependence of the field-like SOTs on these strains, while the antidamping SOT is…

Materials Science · Physics 2021-06-14 Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

In the perovskite Ti oxide RTiO3 (R=rare-earth ions), the Ti t2g orbitals and spins in the 3d^1 state couple each other through the strong electron correlations, resulting in a rich variety of orbital-spin phases. The origin and nature of…

Strongly Correlated Electrons · Physics 2007-05-23 Masahito Mochizuki , Masatoshi Imada

The bilayer heterostructures composed of an ultrathin ferromagnetic metal (FM) and a material hosting strong spin-orbit (SO) coupling are principal resource for SO torque and spin-to-charge conversion nonequilibrium effects in spintronics.…

Materials Science · Physics 2020-10-28 Kapildeb Dolui , Branislav K. Nikolic

We predict that due to spin-orbit(SO) interaction there is a torque even for the parallel configuration of spin valve structure (F1/2DEG/F2). This torque arises due to spin orbit interaction. We develop a scattering theory for spin density…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. P. Pareek

Magnetic heterostructure Mo/CoFeB/MgO has strong perpendicular magnetic anisotropy and thermal stability. Through current-induced hysteresis loop shift measurements, we show that the dampinglike spin-orbit torque (SOT) efficiency of…

Materials Science · Physics 2018-10-24 Tian-Yue Chen , Hsin-I Chan , Wei-Bang Liao , Chi-Feng Pai

The development of magnetic heterostructures with strong spin-orbit torques (SOTs), low impedance, strong perpendicular magnetic anisotropy (PMA), and good integration compatibility at the same time is central for high-performance…

Materials Science · Physics 2025-08-20 Zhihao Yan , Zhengxiao Li , Lujun Zhu , Xin Lin , Lijun Zhu

In this work we report observation of in-plane current induced out-of-plane magnetic field driven torque in spin valve structure. Since ferromagnet has high spin orbit coupling it is expected to be the source of spin-orbit-torque as it…

Mesoscale and Nanoscale Physics · Physics 2018-06-27 Arnab Bose , Duc Duong Lam , Swapnil Bhuktare , Sutapa Dutta , Hanuman Singh , Shinji Miwa , Ashwin A. tulapurkar

Spin polarized currents are employed to efficiently manipulate the magnetization of ferromagnetic ultrathin films by exerting a torque on it. If the spin currents are generated by means of the spin-orbit interaction between a ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2020-04-07 R. Guerrero , A. Anadon , A. Gudin , J. M. Diez , P. Olleros-Rodriguez , M. Muñoz , R. Miranda , J. Camarero , P. Perna

Spin-orbit torque (SOT) can be used to efficiently manipulate the magnetic state of magnetic materials, which is an essential element for memory and logic applications. Due to symmetry constraints, only in-plane spins can be injected into…

Non-collinear antiferromagnets exhibits richer magneto-transport properties due to the topologically nontrivial spin structure they possess compared to conventional nonmagnetic materials, which allows us to manipulate the charge-spin…

Materials Science · Physics 2022-03-14 Longjie Yu , Shutaro Karube , Min Liu , Masakiyo Tsunoda , Mikihiko Oogane , Yasuo Ando

We investigate a possible correlation between spin orbit torque (SOT) and exchange-bias (EB) in IrMn-layer/ferromagnetic-ribbon heterostructure by performing magnetoimpedance (MI) measurements. To uncover this correlation, we benefit from…

Oxide thin films and interfaces with strong spin-orbit coupling have recently shown exceptionally high charge-to-spin conversion, making them potential spin-source materials for spintronics. Epitaxial strain engineering using oxide…

In this paper, we report the observation of spin-orbit magnetoresistance (SOMR) in ferromagnetic metal/heavy metal/MgO system. We measure the magnetoresistance as the function of the thickness of heavy metal (HM) for CoFeB/HM/MgO and…

Mesoscale and Nanoscale Physics · Physics 2020-05-25 Haoran Ni , Shuangfeng Li , Qihan Zhang , Jiguang Yao , Yongwei Cui , Xiaolong Fan , Desheng Xue

Current-induced spin-orbit torque (SOT) has emerged as a promising method for achieving energy-efficient magnetisation switching in advanced spintronic devices. Over the past two decades, researchers have primarily focused on enhancing spin…

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