scholarly journals Local spin transfer torque and magnetoresistance in domain walls with variable width

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Hamidreza Kazemi ◽  
Sebastian Eggert ◽  
Nicholas Sedlmayr
Keyword(s):  
Domain Walls ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Local Spin

scholarly journals The increase of the spin-transfer torque threshold current density in coupled vortex domain walls

2011 ◽  
Vol 24 (2) ◽  
pp. 024210 ◽  
Author(s):  
S Lepadatu ◽  
A P Mihai ◽  
J S Claydon ◽  
F Maccherozzi ◽  
S S Dhesi ◽  
...  
Keyword(s):  
Current Density ◽  
Domain Walls ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Spin Transfer Torque ◽  
Spin Transfer

scholarly journals Enhanced spin transfer torque effect for transverse domain walls in cylindrical nanowires

2011 ◽  
Vol 84 (9) ◽  
Author(s):  
Matteo Franchin ◽  
Andreas Knittel ◽  
Maximilian Albert ◽  
Dmitri S. Chernyshenko ◽  
Thomas Fischbacher ◽  
...  
Keyword(s):  
Domain Walls ◽  
Spin Transfer Torque ◽  
Spin Transfer

Controllable Domain Walls in Two-Dimensional Ferromagnetic Material Fe3GeTe2 Based on the Spin-Transfer Torque Effect

ACS Nano ◽  
2021 ◽  
Author(s):  
Ke Pei ◽  
Shanshan Liu ◽  
Liting Yang ◽  
Enze Zhang ◽  
Ruixuan Zhang ◽  
...  
Keyword(s):  
Domain Walls ◽  
Ferromagnetic Material ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Two Dimensional

scholarly journals Magnetic domain walls displacement: Automotion versus spin-transfer torque

2010 ◽  
Vol 82 (21) ◽  
Author(s):  
Jean-Yves Chauleau ◽  
Raphaël Weil ◽  
André Thiaville ◽  
Jacques Miltat
Keyword(s):  
Domain Walls ◽  
Magnetic Domain ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetic Domain Walls

FIRST-PRINCIPLES CALCULATIONS OF CURRENT-INDUCED SPIN-TRANSFER TORQUES IN MAGNETIC DOMAIN WALLS

2013 ◽  
Vol 27 (12) ◽  
pp. 1350092 ◽  
Author(s):  
LING TANG ◽  
ZHIJUN XU ◽  
ZEJIN YANG
Keyword(s):  
First Principles ◽  
Domain Walls ◽  
Order Term ◽  
Tight Binding ◽  
Magnetic Domain ◽  
Spin Transfer ◽  
Third Order ◽  
First Order ◽  
Local Spin ◽  
Magnetic Domain Walls

Current-induced spin-transfer torques (STTs) have been studied in Fe , Co and Ni domain walls (DWs) by the method based on the first-principles noncollinear calculations of scattering wavefunctions expanded in the tight-binding linearized muffin-tin orbital (TB-LMTO) basis. The results show that the out-of-plane component of nonadiabatic STT in Fe DW has localized form, which is in contrast to the typical nonlocal oscillating nonadiabatic torques obtained in Co and Ni DWs. Meanwhile, the degree of nonadiabaticity in STT is also much greater for Fe DW. Further, our results demonstrate that compared to the well-known first-order nonadiabatic STT, the torque in the third-order spatial derivative of local spin can better describe the distribution of localized nonadiabatic STT in Fe DW. The dynamics of local spin driven by this third-order torques in Fe DW have been investigated by the Landau–Lifshitz–Gilbert (LLG) equation. The calculated results show that with the same amplitude of STTs the DW velocity induced by this third-order term is about half of the wall speed for the case of the first-order nonadiabatic STT.

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