Micromagnetic simulations of spin-wave normal modes and the spin-transfer-torque driven magnetization dynamics of a ferromagnetic cross

2014 ◽  
Vol 115 (17) ◽  
pp. 17D123 ◽  
Author(s):  
Tanmoy Pramanik ◽  
Urmimala Roy ◽  
Maxim Tsoi ◽  
Leonard F. Register ◽  
Sanjay K. Banerjee
Keyword(s):  
Spin Wave ◽  
Normal Modes ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetization Dynamics ◽  
Micromagnetic Simulations ◽  
Wave Normal

scholarly journals Nonresonant amplification of spin waves through interface magnetoelectric effect and spin-transfer torque

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Piotr Graczyk ◽  
Maciej Krawczyk
Keyword(s):  
Spin Wave ◽  
Magnetoelectric Effect ◽  
Spin Waves ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetization Dynamics ◽  
Dielectric Thin Film ◽  
Spintronic Devices ◽  
Thin Film Capacitors ◽  
Dynamic Charge

AbstractWe present a new mechanism for manipulation of the spin-wave amplitude through the use of the dynamic charge-mediated magnetoelectric effect in ultrathin multilayers composed of dielectric thin-film capacitors separated by a ferromagnetic bilayer. Propagating spin waves can be amplified and attenuated with rising and decreasing slopes of the oscillating voltage, respectively, locally applied to the sample. The way the spin accumulation is generated makes the interaction of the spin-transfer torque with the magnetization dynamics mode-selective and restricted to some range of spin-wave frequencies, which is contrary to known types of the spin-transfer torque effects. The interfacial nature of spin-dependent screening allows to reduce the thickness of the fixed magnetization layer to a few nanometers, thus the proposed effect significantly contributes toward realization of the magnonic devices and also miniaturization of the spintronic devices.

Magnetization dynamics of antiferromagnetic metals of PtMn and IrMn driven by a pulsed spin-transfer torque

2021 ◽  
Vol 118 (25) ◽  
pp. 252407
Author(s):  
Kyuhwe Kang ◽  
Won-Bin Lee ◽  
Dong-Kyu Lee ◽  
Kyung-Jin Lee ◽  
Gyung-Min Choi
Keyword(s):  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetization Dynamics

Nonstationary magnetization dynamics driven by spin transfer torque

2009 ◽  
Vol 79 (10) ◽  
Author(s):  
G. Siracusano ◽  
G. Finocchio ◽  
A. La Corte ◽  
G. Consolo ◽  
L. Torres ◽  
...  
Keyword(s):  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetization Dynamics

Spin-Wave Dynamics in Antiferromagnets under Electric Current

2021 ◽  
Vol 1 ◽  
Keyword(s):  
Electric Current ◽  
Spin Wave ◽  
Doppler Effect ◽  
Spin Waves ◽  
Microscopic Analysis ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Wave Dynamics

Electric current causes a Doppler effect in spin waves in ferromagnets through a spin-transfer torque. We report that antiferromagnets allow two such spin-transfer torques and present a microscopic analysis that interpolates ferro- and antiferromagnetic transport regimes.

Time-resolved x-ray imaging of magnetization dynamics in spin-transfer torque devices

2009 ◽  
Vol 80 (2) ◽  
Author(s):  
V. Chembrolu ◽  
J. P. Strachan ◽  
X. W. Yu ◽  
A. A. Tulapurkar ◽  
T. Tyliszczak ◽  
...  
Keyword(s):  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetization Dynamics ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Imaging
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