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Related papers: Unconventional Spin-Orbit Torques from Sputtered M…

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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) in normal metal/ferromagnet (NM/FM) bilayers bears great promise for technological applications, but the microscopic origin of purely interfacial SOTs in ultra-thin systems is not yet fully…

Mesoscale and Nanoscale Physics · Physics 2023-02-02 Alessandro Veneri , David T. S. Perkins , Aires Ferreira

We investigate spin-charge conversion phenomena in hybrid structures of topological insulator (TI) thin films and magnetic insulators. We find an anisotropic inverse spin-galvanic effect (ISGE) that yields a highly tunable spin-orbit torque…

Mesoscale and Nanoscale Physics · Physics 2020-11-11 Ali G. Moghaddam , Alireza Qaiumzadeh , Anna Dyrdał , Jamal Berakdar

We study the spin orbit torque (SOT) and Dzyaloshinskii-Moriya interaction (DMI) in the dual-interfaced Co-Ni perpendicular multilayers. Through the combination of top and bottom layer materials (Pt, Ta, MgO and Cu), SOT and DMI are…

We investigate the origin of spin-orbit torques (SOTs) in archetypical Pt/Co/MgO thin films structures by performing harmonic Hall measurements. The behaviour of the damping like (DL) effective field ($h_{DL}$) with varying the Pt layer…

Materials Science · Physics 2024-03-12 M. S. Gabor , M. Belmeguenai , I. M. Miron

Spin-orbit torque (SOT) is an emerging technology that enables the efficient manipulation of spintronic devices. The initial processes of interest in SOTs involved electric fields, spin-orbit coupling, conduction electron spins and…

Broken symmetry is the essence of exotic properties in condensed matters. Tungsten ditelluride, WTe$_2$, exceptionally takes a non-centrosymmetric crystal structure in the family of transition metal dichalcogenides, and exhibits novel…

To achieve efficient anti-damping switching of nanoscale magnetic memories with perpendicular magnetic anisotropy using spin-orbit torque requires that the anti-damping spin-orbit torque have a strong out-of-plane component. The spin…

High quality epitaxial thin films of Jeff=1/2 Mott insulator Sr2IrO4 with increasing in-plane tensile strain have been grown on top of SrTiO3(001) substrates. Increasing the in-plane tensile strain up to ~0.3% was observed to drop the c/a…

Spintronics exploits spin-orbit coupling (SOC) to generate spin currents, spin torques, and, in the absence of inversion symmetry, Rashba, and Dzyaloshinskii-Moriya interactions (DMI). The widely used magnetic materials, based on 3d metals…

Current-induced spin-orbit torques (SOTs) are of interest for fast and energy-efficient manipulation of magnetic order in spintronic devices. To be deterministic, however, switching of perpendicularly magnetized materials by SOT requires a…

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice…

Strongly Correlated Electrons · Physics 2017-01-04 Alexander C. Bornstein , Benjamin J. Chapman , Nirmal J. Ghimire , David G. Mandrus , David S. Parker , Minhyea Lee

SrRuO$_3$ (SRO113) is an important material for device physics particularly as one of the best metallic oxide electrodes for ferroelectric devices. This oxide has moderate electron correlations with novel properties including ferromagnetic…

A nearly free electron metal and a Mott insulating state can be thought of as opposite ends of possibilities for the motion of electrons in a solid. In the magnetic oxide metal PdCrO$_{2}$, these two coexist as alternating layers. Using…

Spin currents can modify the magnetic state of ferromagnetic ultrathin films through spin-orbit torque. They may be generated by means of spin-orbit interaction by either bulk or interfacial phenomena. Electrical transport measurements…

Mesoscale and Nanoscale Physics · Physics 2022-06-27 A. Anadón , R. Guerrero , J. A. Jover-Galtier , A. Gudín , J. M. Díez , P. Olleros-Rodríguez , R. Miranda , J. Camarero , P. Perna

We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The flow of alternating current through a Pt/NiFe bilayer generates an oscillating…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Luqiao Liu , Takahiro Moriyama , D. C. Ralph , R. A. Buhrman

Spin-orbit torque (SOT) induced by spin Hall and interfacial effects in heavy metal(HM)/ferromagnetic(FM) bilayers has recently been employed to switch the magnetization direction using in-plane current injection. In this paper, using the…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Farzad Mahfouzi , Nicholas Kioussis

The reversal of perpendicular magnetization (PM) by electric control is crucial for high-density integration of low-power magnetic random-access memory (MRAM). Although the spin-transfer torque (STT) and spin-orbit torque (SOT) technologies…

Materials Science · Physics 2022-02-17 Xing-Guo Ye , Peng-Fei Zhu , Wen-Zheng Xu , Nianze Shang , Kaihui Liu , Zhi-Min Liao

We report the detailed electronic structure of WTe$_2$ by high resolution angle-resolved photoemission spectroscopy. Unlike the simple one electron plus one hole pocket type of Fermi surface topology reported before, we resolved a rather…

Strongly Correlated Electrons · Physics 2015-10-21 J. Jiang , F. Tang , X. C. Pan , H. M. Liu , X. H. Niu , Y. X. Wang , D. F. Xu , H. F. Yang , B. P. Xie , F. Q. Song , X. G. Wan , D. L. Feng

The motion of chiral magnetic domain walls (DWs) driven by spin-orbit torque (SOT) has been extensively studied in heavy metal/ferromagnet heterostructures with perpendicular magnetic anisotropy. This study specifically focuses on…

Mesoscale and Nanoscale Physics · Physics 2025-01-07 Nobuyuki Umetsu , Michael Quinsat , Susumu Hashimoto , Tsuyoshi Kondo , Masaki Kado