Magnetization switching induced by electron- and magnon-mediated spin torque in topological insulator devices (Conference Presentation)

2019 ◽  
Author(s):  
Yi Wang ◽  
Dapeng Zhu ◽  
Hyunsoo Yang
Keyword(s):  
Topological Insulator ◽  
Spin Torque ◽  
Magnetization Switching

Quantum theory of spin-torque driven magnetization switching

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
Ping Tang ◽  
Xiufeng Han ◽  
Shufeng Zhang
Keyword(s):  
Quantum Theory ◽  
Spin Torque ◽  
Magnetization Switching

Resonant magnetization switching induced by spin-torque-driven oscillations and its use in three-dimensional magnetic storage applications

2015 ◽  
Vol 8 (10) ◽  
pp. 103001 ◽  
Author(s):  
Kiwamu Kudo ◽  
Hirofumi Suto ◽  
Tazumi Nagasawa ◽  
Koichi Mizushima ◽  
Rie Sato
Keyword(s):  
Three Dimensional ◽  
Spin Torque ◽  
Magnetic Storage ◽  
Magnetization Switching

Magnetization switching by magnon-mediated spin torque through an antiferromagnetic insulator

Science ◽  
2019 ◽  
Vol 366 (6469) ◽  
pp. 1125-1128 ◽  
Author(s):  
Yi Wang ◽  
Dapeng Zhu ◽  
Yumeng Yang ◽  
Kyusup Lee ◽  
Rahul Mishra ◽  
...  
Keyword(s):  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Spin Torque ◽  
Local Magnetization ◽  
Magnetization Switching ◽  
Spintronic Devices ◽  
Magnetic Devices ◽  
Alternative Approach ◽  
Efficient Control ◽  
Electrical Spin

Widespread applications of magnetic devices require an efficient means to manipulate the local magnetization. One mechanism is the electrical spin-transfer torque associated with electron-mediated spin currents; however, this suffers from substantial energy dissipation caused by Joule heating. We experimentally demonstrated an alternative approach based on magnon currents and achieved magnon-torque–induced magnetization switching in Bi2Se3/antiferromagnetic insulator NiO/ferromagnet devices at room temperature. The magnon currents carry spin angular momentum efficiently without involving moving electrons through a 25-nanometer-thick NiO layer. The magnon torque is sufficient to control the magnetization, which is comparable with previously observed electrical spin torque ratios. This research, which is relevant to the energy-efficient control of spintronic devices, will invigorate magnon-based memory and logic devices.

scholarly journals Influence of quantum and thermal noise on spin-torque-driven magnetization switching

2013 ◽  
Vol 103 (2) ◽  
pp. 022403 ◽  
Author(s):  
Yong Wang ◽  
Yan Zhou ◽  
Fu-Chun Zhang
Keyword(s):  
Thermal Noise ◽  
Spin Torque ◽  
Magnetization Switching
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