Voltage impulse induced bistable magnetization switching in multiferroic heterostructures

2012 ◽  
Vol 100 (13) ◽  
pp. 132409 ◽  
Author(s):  
T. X. Nan ◽  
Z. Y. Zhou ◽  
J. Lou ◽  
M. Liu ◽  
X. Yang ◽  
...  
Keyword(s):  
Magnetization Switching ◽  
Multiferroic Heterostructures

scholarly journals Ultra-Low-Energy Electric Field-Induced Magnetization Switching in Multiferroic Heterostructures

SPIN ◽  
2016 ◽  
Vol 06 (03) ◽  
pp. 1630001 ◽  
Author(s):  
Kuntal Roy
Keyword(s):  
Electric Field ◽  
Performance Metrics ◽  
Thermal Fluctuations ◽  
Stable States ◽  
Magnetization Switching ◽  
Magnetic Exchange ◽  
Recent Developments ◽  
Multiferroic Heterostructures ◽  
Binary Switching ◽  
New Phenomena

Electric field-induced magnetization switching in multiferroics is intriguing for both fundamental studies and potential technological applications. Here, we review the recent developments on electric field-induced magnetization switching in multiferroic heterostructures. Particularly, we study the dynamics of magnetization switching between the two stable states in a shape-anisotropic single-domain nanomagnet using stochastic Landau–Lifshitz–Gilbert (LLG) equation in the presence of thermal fluctuations. For magnetostrictive nanomagnets in strain-coupled multiferroic composites, such study of magnetization dynamics, contrary to steady-state scenario, revealed intriguing new phenomena on binary switching mechanism. While the traditional method of binary switching requires to tilt the potential profile to the desired state of switching, we show that no such tilting is necessary to switch successfully since the magnetization’s excursion out of magnet’s plane can generate a built-in asymmetry during switching. We also study the switching dynamics in multiferroic heterostructures having magnetoelectric coupling at the interface and magnetic exchange coupling that can facilitate to maintain the direction of switching with the polarity of the applied electric field. We calculate the performance metrics like switching delay and energy dissipation during switching while simulating LLG dynamics. The performance metrics turn out to be very encouraging for potential technological applications.

Electric-field-controlled magnetization switching in multiferroic heterostructures containing interactive magnetic nanoislands

2019 ◽  
Vol 53 (2) ◽  
pp. 024002 ◽  
Author(s):  
Meng-Jun Zhou ◽  
Tiannan Yang ◽  
Jian-Jun Wang ◽  
Long-Qing Chen ◽  
Ce-Wen Nan
Keyword(s):  
Electric Field ◽  
Magnetization Switching ◽  
Multiferroic Heterostructures

scholarly journals Layer-selective magnetization switching in the chirped photonic crystal with GdFeCo

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
O. V. Borovkova ◽  
D. O. Ignatyeva ◽  
V. I. Belotelov
Keyword(s):  
Photonic Crystal ◽  
Data Storage ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
The Other ◽  
Magnetization Switching ◽  
Dielectric Layers ◽  
Magnetization State ◽  
Operating Wavelength ◽  
Magnetophotonic Crystal

AbstractHere we propose a magnetophotonic structure for the layer-selective magnetization switching with femtosecond laser pulses of different wavelengths. It is based on a chirped magnetophotonic crystal (MPC) containing magnetic GdFeCo and nonmagnetic dielectric layers. At each operating wavelength the laser pulses heat up to necessary level only one GdFeCo layer that leads to its magnetization reversal without any impact on the magnetization of the other layers. Moreover, magneto-optical reading of the MPC magnetization state is discussed. Lateral dimensions of the considered MPC can be made small enough to operate as a unit cell for data storage.

scholarly journals Magnetization switching driven by current-induced torque from weakly spin-orbit coupled Zr

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Z. C. Zheng ◽  
Q. X. Guo ◽  
D. Jo ◽  
D. Go ◽  
L. H. Wang ◽  
...  
Keyword(s):  
Spin Orbit ◽  
Magnetization Switching
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