4.7 Article

Nonvolatile magnetization switching in a single-layer magnetic topological insulator

Related references

Note: Only part of the references are listed.
Article Physics, Applied

Giant bulk spin-orbit torque and efficient electrical switching in single ferrimagnetic FeTb layers with strong perpendicular magnetic anisotropy

Qianbiao Liu et al.

Summary: This study reports a distinct and giant bulk damping-like spin-orbit torque in strong-perpendicular magnetic anisotropy (PMA) ferrimagnetic Fe100-xTbx single layers. The giant bulk torque can switch thick Fe100-xTbx layers with very strong PMA and high coercivity at low current densities.

APPLIED PHYSICS REVIEWS (2022)

Article Chemistry, Multidisciplinary

Field-Free Magnetization Switching in a Ferromagnetic Single Layer through Multiple Inversion Asymmetry Engineering

Qikun Huang et al.

Summary: This study realizes field-free spin-orbit torque-induced magnetization switching in a ferromagnetic single layer by introducing oblique sputtering and vertical composition gradient, resulting in broken multiple inversion symmetry. It provides a method for fully electrical manipulation of magnetization without external magnetic field and auxiliary heavy metal layer, enabling flexible design for future spin-orbit torque-based memory and logic devices.

ACS NANO (2022)

Article Multidisciplinary Sciences

Magnetization switching in polycrystalline Mn3Sn thin film induced by self-generated spin-polarized current

Hang Xie et al.

Summary: The electrical switching of noncollinear antiferromagnetic state in Mn3Sn can be achieved using self-generated spin torque. The spin current injection from the Ta layer can be controlled by varying the MgO thickness, and the switching sustains even at a large MgO thickness. Moreover, the switching polarity reverses when the MgO thickness exceeds a certain value.

NATURE COMMUNICATIONS (2022)

Article Materials Science, Multidisciplinary

Observation of nontrivial spin-orbit torque in single-layer ferromagnetic metals

Qingwei Fu et al.

Summary: In this study, we experimentally observed the presence of net spin-orbit torques (SOT) in single conductive ferromagnet metal (HM) bilayers. In addition to the expected in-plane (IP) damping-like SOT, we also observed an unexpected out-of-plane (OOP) damping-like SOT. Using spin-torque ferromagnetic resonance technique, we measured the efficiencies of both IP and OOP SOT in pure Py. We propose that the IP SOT is primarily related to the Py bulk spin Hall effect, while the unconventional SOT is attributed to the out-of-plane polarized spin current generated from the nonequilibrium spin swapping effect. Furthermore, we found that these self-induced SOTs are also present in other commonly studied HM/FM multilayer systems, especially those with low conductivity.

PHYSICAL REVIEW B (2022)

Article Materials Science, Multidisciplinary

Connections between spin-orbit torques and unidirectional magnetoresistance in ferromagnetic-metal-heavy-metal heterostructures

L. Chen et al.

Summary: In this study, we investigate the connections between current-induced spin-orbit torques and unidirectional magnetoresistance (UMR) by performing second harmonic longitudinal resistance measurements on a Co/Pt bilayer. Our results suggest that the spin Hall effect (SHE) and the inverse spin galvanic effect (iSGE) are responsible for the generation of the fieldlike torque (hFL) in UMR induced by spin-dependent scattering. Additionally, the dampinglike torque (hDL) solely originates from the SHE, as evidenced by its proportionality to the inverse Co thickness and lack of sign reversal.

PHYSICAL REVIEW B (2022)

Article Physics, Applied

Current-induced magnetization switching in a chemically disordered A1 CoPt single layer

Zehan Chen et al.

Summary: This study demonstrates current-induced magnetization switching in a perpendicularly magnetized A1 CoPt single layer without attaching SOT source materials. By fabricating a CoPt single layer with a composition gradient, spin-orbit torque (SOT) efficiency was evaluated and successful SOT-induced magnetization switching was achieved. This approach provides a new way to realize current-induced magnetization in ferromagnetic single layers.

APPLIED PHYSICS EXPRESS (2021)

Article Physics, Applied

Magnetization switching induced by spin-orbit torque from Co2MnGa magnetic Weyl semimetal thin films

Ke Tang et al.

Summary: This study investigates magnetization switching induced by spin-orbit torque in Co2MnGa magnetic Weyl semimetal thin films, demonstrating a relatively large spin Hall efficiency and exploring various characteristics such as second harmonic signals, thickness dependence of spin Hall efficiency, and shift of anomalous Hall loops under applied currents. The research contributes to understanding mechanisms of spin-current generation and potential applications of magnetic WSMs in spintronic devices.

APPLIED PHYSICS LETTERS (2021)

Article Chemistry, Multidisciplinary

Unveiling the Mechanism of Bulk Spin-Orbit Torques within Chemically Disordered FexPt1-x Single Layers

Lijun Zhu et al.

Summary: The study investigates the mechanism of unexpected bulk spin-orbit torques (SOTs) in magnetic single-layers by utilizing chemically disordered FexPt1-x. It is found that the bulk dampinglike SOT arises from an imbalanced internal spin current and is sensitive to the presence of a vertical composition gradient. The discovery suggests the potential development of low-power single-layer SOT devices through strain engineering.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Multidisciplinary Sciences

Field-free spin-orbit torque-induced switching of perpendicular magnetization in a ferrimagnetic layer with a vertical composition gradient

Zhenyi Zheng et al.

Summary: This study demonstrates bias-field-free switching of perpendicular ferrimagnets through the use of vertical composition gradient, which induces intrinsic SOTs and gradient-driven DMI to break in-plane symmetry during the switching process. The research provides a novel strategy for designing efficient and compact SOT devices for perpendicular ferrimagnetic materials.

NATURE COMMUNICATIONS (2021)

Article Physics, Applied

Spin-Orbit Coupling in Single-Layer Ferrimagnets: Direct Observation of Spin-Orbit Torques and Chiral Spin Textures

Sachin Krishnia et al.

Summary: The study demonstrates the presence of spin-orbit coupling and inversion asymmetry effects in a single Gd-Fe-Co ferrimagnetic layer, even without a heavy-metal interface. The effects were quantified using electric transport measurements and observed using Brillouin light-scattering measurement technique and x-ray photoemission electron microscopy. It was also found that these effects could be optimized by varying the thickness of Gd-Fe-Co or in combination with interfacial effects.

PHYSICAL REVIEW APPLIED (2021)

Article Materials Science, Multidisciplinary

Spin-orbit torque in a Ni-Fe single layer

Takeshi Seki et al.

Summary: The study evaluated the self-induced spin-orbit torque in a single ferromagnetic layer, showing that spin-torque ferromagnetic resonance was present in thin Ni-Fe layers with both asymmetric and symmetric Py layers, while the dampinglike torque was observed only in asymmetric Py layers with thickness <= 3 nm.

PHYSICAL REVIEW B (2021)

Article Materials Science, Multidisciplinary

Giant spin Hall angle in the Hensler alloy Weyl ferromagnet Co2MnGa

L. Leiva et al.

Summary: The inverse spin Hall effect (ISHE) in the ferromagnetic Weyl semimetal Heusler alloy Co2MnGa was investigated, revealing a high spin Hall angle and the ability to control the intensity of the spin Hall effect through magnetization direction. Additionally, it was found that Onsager's reciprocity does not hold for this system, possibly due to different spin-dependent Hall conductivity for spin-up and spin-down carriers.

PHYSICAL REVIEW B (2021)

Article Physics, Multidisciplinary

Spin-Momentum-Locking Inhomogeneities as a Source of Bilinear Magnetoresistance in Topological Insulators

A. Dyrdal et al.

PHYSICAL REVIEW LETTERS (2020)

Article Physics, Applied

Spin-Orbit Torque in a Perpendicularly Magnetized Ferrimagnetic Tb-Co Single Layer

Jae Wook Lee et al.

PHYSICAL REVIEW APPLIED (2020)

Article Chemistry, Multidisciplinary

Bulk Spin Torque-Driven Perpendicular Magnetization Switching in L10 FePt Single Layer

Meng Tang et al.

ADVANCED MATERIALS (2020)

Article Multidisciplinary Sciences

Probing the low-temperature limit of the quantum anomalous Hall effect

Lei Pan et al.

SCIENCE ADVANCES (2020)

Article Materials Science, Multidisciplinary

Determining the Rashba parameter from the bilinear magnetoresistance response in a two-dimensional electron gas

D. C. Vaz et al.

PHYSICAL REVIEW MATERIALS (2020)

Article Physics, Applied

Large Inverse Spin Hall Effect in Co-Tb Alloys due to Spin Seebeck Effect

A. Yagmur et al.

PHYSICAL REVIEW APPLIED (2020)

Article Materials Science, Multidisciplinary

Current-induced magnetization switching in a CoTb amorphous single layer

R. Q. Zhang et al.

PHYSICAL REVIEW B (2020)

Article Materials Science, Multidisciplinary

Electrical switching of perpendicular magnetization in a single ferromagnetic layer

Liang Liu et al.

PHYSICAL REVIEW B (2020)

Article Chemistry, Multidisciplinary

Unidirectional Magneto-Resistance in Modulation-Doped Magnetic Topological Insulators

Yabin Fan et al.

NANO LETTERS (2019)

Article Nanoscience & Nanotechnology

Anomalous spin-orbit torques in magnetic single-layer films

Wenrui Wang et al.

NATURE NANOTECHNOLOGY (2019)

Article Physics, Multidisciplinary

Nonlinear Planar Hall Effect

Pan He et al.

PHYSICAL REVIEW LETTERS (2019)

Article Physics, Applied

Spin-Orbit Torque in a Single Ferromagnetic Layer Induced by Surface Spin Rotation

Ziyan Luo et al.

PHYSICAL REVIEW APPLIED (2019)

Review Physics, Multidisciplinary

Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems

A. Manchon et al.

REVIEWS OF MODERN PHYSICS (2019)

Article Multidisciplinary Sciences

Magnetization switching using topological surface states

Peng Li et al.

SCIENCE ADVANCES (2019)

Article Materials Science, Multidisciplinary

Large spin anomalous Hall effect in L10-FePt: Symmetry and magnetization switching

Takeshi Seki et al.

PHYSICAL REVIEW B (2019)

Article Materials Science, Multidisciplinary

Relation between spin Hall effect and anomalous Hall effect in 3d ferromagnetic metals

Yasutomo Omori et al.

PHYSICAL REVIEW B (2019)

Article Physics, Applied

Observation of Anomalous Spin Torque Generated by a Ferromagnet

Arnab Bose et al.

PHYSICAL REVIEW APPLIED (2018)

Article Physics, Applied

Reorientable Spin Direction for Spin Current Produced by the Anomalous Hall Effect

Jonathan D. Gibbons et al.

PHYSICAL REVIEW APPLIED (2018)

News Item Chemistry, Physical

SPINTRONICS Switching by topological insulators

Chi-Feng Pai

NATURE MATERIALS (2018)

Article Physics, Multidisciplinary

Origins of the Unidirectional Spin Hall Magnetoresistance in Metallic Bilayers

Can Onur Avci et al.

PHYSICAL REVIEW LETTERS (2018)

Article Engineering, Electrical & Electronic

Spin-transfer torque induced by the spin anomalous Hall effect

Satoshi Iihama et al.

NATURE ELECTRONICS (2018)

Article Nanoscience & Nanotechnology

Spatially and time-resolved magnetization dynamics driven by spin-orbit torques

Manuel Baumgartner et al.

NATURE NANOTECHNOLOGY (2017)

Article Physics, Multidisciplinary

Room-Temperature Spin-Orbit Torque Switching Induced by a Topological Insulator

Jiahao Han et al.

PHYSICAL REVIEW LETTERS (2017)

Article Materials Science, Multidisciplinary

Spin injection and detection via the anomalous spin Hall effect of a ferromagnetic metal

K. S. Das et al.

PHYSICAL REVIEW B (2017)

Article Nanoscience & Nanotechnology

Electric-field control of spin-orbit torque in a magnetically doped topological insulator

Yabin Fan et al.

NATURE NANOTECHNOLOGY (2016)

Article Physics, Multidisciplinary

Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator

K. Yasuda et al.

PHYSICAL REVIEW LETTERS (2016)

Article Materials Science, Multidisciplinary

Manipulation of pure spin current in ferromagnetic metals independent of magnetization

Dai Tian et al.

PHYSICAL REVIEW B (2016)

Article Physics, Applied

Magnetoresistance of heavy and light metal/ferromagnet bilayers

Can Onur Avci et al.

APPLIED PHYSICS LETTERS (2015)

Article Physics, Applied

Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

Takeshi Seki et al.

APPLIED PHYSICS LETTERS (2015)

Article Physics, Multidisciplinary

Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayers

Can Onur Avci et al.

NATURE PHYSICS (2015)

Article Physics, Multidisciplinary

Quantum anomalous Hall effect in magnetic topological insulators

Jing Wang et al.

PHYSICA SCRIPTA (2015)

Article Physics, Multidisciplinary

Electrically Tunable Magnetism in Magnetic Topological Insulators

Jing Wang et al.

PHYSICAL REVIEW LETTERS (2015)

Article Materials Science, Multidisciplinary

Effect of magnetic field on a magnetic topological insulator film with structural inversion asymmetry

Shu-feng Zhang et al.

PHYSICAL REVIEW B (2014)

Article Instruments & Instrumentation

A scanning, all-fiber Sagnac interferometer for high resolution magneto-optic measurements at 820 nm

Alexander Fried et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2014)

Article Physics, Multidisciplinary

Inverse Spin Hall Effect in a Ferromagnetic Metal

B. F. Miao et al.

PHYSICAL REVIEW LETTERS (2013)

Article Physics, Multidisciplinary

Quantum Transport in Magnetic Topological Insulator Thin Films

Hai-Zhou Lu et al.

PHYSICAL REVIEW LETTERS (2013)

Article Multidisciplinary Sciences

Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum

Luqiao Liu et al.

SCIENCE (2012)

Article Physics, Multidisciplinary

Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface

Haijun Zhang et al.

NATURE PHYSICS (2009)

Article Physics, Multidisciplinary

Spin Hall effect in the presence of spin diffusion

SF Zhang

PHYSICAL REVIEW LETTERS (2000)