Rashba effect in functional spintronic devices

HC Koo, SB Kim, H Kim, TE Park, JW Choi… - Advanced …, 2020 - Wiley Online Library
Exploiting spin transport increases the functionality of electronic devices and enables such
devices to overcome physical limitations related to speed and power. Utilizing the Rashba …

Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet

S Hu, DF Shao, H Yang, C Pan, Z Fu, M Tang… - Nature …, 2022 - nature.com
Current induced spin-orbit torques driven by the conventional spin Hall effect are widely
used to manipulate the magnetization. This approach, however, is nondeterministic and …

Recent progress in spin-orbit torque magnetic random-access memory

VD Nguyen, S Rao, K Wostyn, S Couet - npj Spintronics, 2024 - nature.com
Spin-orbit torque magnetic random-access memory (SOT-MRAM) offers promise for fast
operation and high endurance but faces challenges such as low switching current, reliable …

Efficient spin–orbit torque in magnetic trilayers using all three polarizations of a spin current

J Ryu, R Thompson, JY Park, SJ Kim, G Choi… - Nature …, 2022 - nature.com
Spin–orbit coupling can convert a charge current into a spin current, thereby generating a
spin–orbit torque (SOT). Energy-efficient, commercially viable SOT technology requires field …

Anomalous spin current anisotropy in a noncollinear antiferromagnet

C Cao, S Chen, RC Xiao, Z Zhu, G Yu, Y Wang… - Nature …, 2023 - nature.com
Cubic materials host high crystal symmetry and hence are not expected to support
anisotropy in transport phenomena. In contrast to this common expectation, here we report …

Room temperature field-free switching of CoFeB/MgO heterostructure based on large-scale few-layer WTe2

X Wang, H Wu, R Qiu, X Huang, J Zhang, J Long… - Cell Reports Physical …, 2023 - cell.com
Summary Spin-orbit-torque (SOT)-driven perpendicular magnetization switching has
attracted great attention for designing energy-efficient, high-density, and thermal-stable …

Electric-field control of field-free spin-orbit torque switching via laterally modulated Rashba effect in Pt/Co/AlOx structures

MG Kang, JG Choi, J Jeong, JY Park, HJ Park… - Nature …, 2021 - nature.com
Spin-orbit coupling effect in structures with broken inversion symmetry, known as the
Rashba effect, facilitates spin-orbit torques (SOTs) in heavy metal/ferromagnet/oxide …

Observation of anti-damping spin–orbit torques generated by in-plane and out-of-plane spin polarizations in MnPd3

M Dc, DF Shao, VDH Hou, A Vailionis, P Quarterman… - Nature Materials, 2023 - nature.com
Large spin–orbit torques (SOTs) generated by topological materials and heavy metals
interfaced with ferromagnets are promising for next-generation magnetic memory and logic …

Field-free spin–orbit torque switching in ferromagnetic trilayers at sub-ns timescales

Q Yang, D Han, S Zhao, J Kang, F Wang… - Nature …, 2024 - nature.com
Current-induced spin torques enable the electrical control of the magnetization with low
energy consumption. Conventional magnetic random access memory (MRAM) devices rely …

Spin swapping effect of band structure origin in centrosymmetric ferromagnets

HJ Park, HW Ko, G Go, JH Oh, KW Kim, KJ Lee - Physical review letters, 2022 - APS
We theoretically demonstrate the spin swapping effect of band structure origin in
centrosymmetric ferromagnets. It is mediated by an orbital degree of freedom but does not …