Control of reversible magnetization switching by pulsed circular magnetic field in glass-coated amorphous microwires

2018 ◽  
Vol 112 (7) ◽  
pp. 072407 ◽  
Author(s):  
Alexander Chizhik ◽  
Arkady Zhukov ◽  
Julian Gonzalez ◽  
Andrzej Stupakiewicz
Keyword(s):  
Magnetic Field ◽  
Magnetization Switching ◽  
Reversible Magnetization ◽  
Circular Magnetic Field ◽  
Amorphous Microwires

scholarly journals Controllable field-free switching of perpendicular magnetization through bulk spin-orbit torque in symmetry-broken ferromagnetic films

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xuejie Xie ◽  
Xiaonan Zhao ◽  
Yanan Dong ◽  
Xianlin Qu ◽  
Kun Zheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Domain Walls ◽  
Single Layer ◽  
Ferromagnetic Film ◽  
Effective Field ◽  
Composition Gradient ◽  
Spin Orbit ◽  
Interlayer Exchange Coupling ◽  
Magnetization Switching ◽  
Perpendicular Magnetization

AbstractProgrammable magnetic field-free manipulation of perpendicular magnetization switching is essential for the development of ultralow-power spintronic devices. However, the magnetization in a centrosymmetric single-layer ferromagnetic film cannot be switched directly by passing an electrical current in itself. Here, we demonstrate a repeatable bulk spin-orbit torque (SOT) switching of the perpendicularly magnetized CoPt alloy single-layer films by introducing a composition gradient in the thickness direction to break the inversion symmetry. Experimental results reveal that the bulk SOT-induced effective field on the domain walls leads to the domain walls motion and magnetization switching. Moreover, magnetic field-free perpendicular magnetization switching caused by SOT and its switching polarity (clockwise or counterclockwise) can be reversibly controlled in the IrMn/Co/Ru/CoPt heterojunctions based on the exchange bias and interlayer exchange coupling. This unique composition gradient approach accompanied with electrically controllable SOT magnetization switching provides a promising strategy to access energy-efficient control of memory and logic devices.

GHz magnetic field influence on magnetization reversal in amorphous microwires

2014 ◽  
Vol 11 (5-6) ◽  
pp. 986-988
Author(s):  
A. Chizhik ◽  
M. Ipatov ◽  
A. Stupakiewicz ◽  
A. Zhukov ◽  
A. Maziewski ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetization Reversal ◽  
Amorphous Microwires ◽  
Field Influence

scholarly journals Magnetization switching in ferromagnets by adsorbed chiral molecules without current or external magnetic field

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Oren Ben Dor ◽  
Shira Yochelis ◽  
Anna Radko ◽  
Kiran Vankayala ◽  
Eyal Capua ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Chiral Molecules ◽  
Magnetization Switching
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