magnetization switching
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APL Materials ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 011104
Abhijeet Ranjan ◽  
Chun-Liang Yang ◽  
Chia-Chang Lee ◽  
Rudis Ismael Salinas Padilla ◽  
Chih-Huang Lai

2021 ◽  
Vol 104 (22) ◽  
Qixun Guo ◽  
Zhongxu Ren ◽  
He Bai ◽  
Xuemin Wang ◽  
Guanghua Yu ◽  

2021 ◽  
Jia-Hui Yuan ◽  
Ya-Bo Chen ◽  
Shu-qing Dou ◽  
Bo Wei ◽  
Huanqing Cui ◽  

Abstract Voltage-driven stochastic magnetization switching in a nanomagnet has attracted more attention recently with its superiority in achieving energy-efficient artificial neuron. Here, a novel pure voltage-driven scheme with ~27.66 aJ energy dissipation is proposed, which could rotate magnetization vector randomly using only a pair of electrodes covered on the multiferroic nanomagnet. Results show that the probability of 180° magnetization switching is examined as a sigmoid-like function of the voltage pulse width and magnitude, which can be utilized as the activation function of designed neuron. Considering the size errors of designed neuron in fabrication, it’s found that reasonable thickness and width variations cause little effect on recognition accuracy for MNIST hand-written dataset. In other words, the designed pure voltage-driven spintronic neuron could tolerate size errors. These results open a new way toward the realization of artificial neural network with low power consumption and high reliability.

AIP Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 115014
Miao Jiang ◽  
Eisuke Matsushita ◽  
Yota Takamura ◽  
Le Duc Anh ◽  
Shigeki Nakagawa ◽  

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6406
Daria O. Ignatyeva ◽  
Pavel O. Kapralov ◽  
Kiran Horabail Prabhakara ◽  
Hiroki Yoshikawa ◽  
Arata Tsukamoto ◽  

Ferrimagnetic rare-earth substituted metal alloys GdFeCo were shown to exhibit the phenomenon of all-optical magnetization switching via femtosecond laser pulses. All-optical magnetization switching has been comprehensively investigated in out-of-plane magnetized GdFeCo films; however, the films with the in-plane magnetic anisotropy have not yet been studied in detail. We report experimental observations of the magnetization switching of in-plane magnetized GdFeCo films by means of the femtosecond laser pulses in the presence of a small magnetic field of about 40 µT. The switching effect has a threshold both in the applied magnetic field and in the light intensity.

2021 ◽  
Vol 119 (15) ◽  
pp. 159901
N. Figueiredo-Prestes ◽  
S. Krishnia ◽  
S. Collin ◽  
Y. Roussigné ◽  
M. Belmeguenai ◽  

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