Controllable superferromagnetism-induced exchange bias effect in goethite microparticles after zero-field-cooling process

2016 ◽  
Vol 119 (7) ◽  
pp. 073902 ◽  
Author(s):  
Ji Ma ◽  
Kezheng Chen
Keyword(s):  
Exchange Bias ◽  
Zero Field ◽  
Cooling Process ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Zero Field Cooling ◽  
Field Cooling

scholarly journals Особенности релаксации остаточной намагниченности антиферромагнитных наночастиц на примере ферригидрита

2020 ◽  
Vol 62 (7) ◽  
pp. 1043
Author(s):  
Д.А. Балаев ◽  
А.А. Красиков ◽  
А.Д. Балаев ◽  
С.В. Столяр ◽  
В.П. Ладыгина ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Exchange Coupling ◽  
Remanent Magnetization ◽  
Zero Field ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Magnetization Relaxation ◽  
Potential Barriers ◽  
Zero Field Cooling ◽  
Field Cooling

In this work, we studied the relaxation of the remanent magnetization of antiferromagnetically ordered ferrihydrite nanoparticles under the conditions of realization of the exchange bias effect for these systems. Magnetization relaxation is characterized by a logarithmic dependence on time, which is typical for thermo-activation processes of the hopping of the magnetic moment of particles through potential barriers caused by magnetic anisotropy. The energy of the barriers obtained from processing the data on relaxation of the remanent magnetization (under the conditions of field cooling) significantly exceeds that for ordinary conditions (zero field cooling). The observed difference indicates the possibility of using the residual magnetization relaxation process to analyze the mechanisms responsible for the effect of exchange bias in antiferromagnetic nanoparticles and obtain the parameters characterizing the exchange coupling of magnetic subsystems in such objects.

The reversal of the spontaneous exchange bias effect and zero-field-cooling magnetization in La1.5Sr0.5Co1−xFexMnO6: the effect of Fe doping

2017 ◽  
Vol 19 (36) ◽  
pp. 25186-25196 ◽  
Author(s):  
H. G. Zhang ◽  
L. Xie ◽  
X. C. Liu ◽  
M. X. Xiong ◽  
L. L. Cao ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Exchange Bias ◽  
Zero Field ◽  
Fe Doping ◽  
Temperature Dependent ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Ion Doping ◽  
Zero Field Cooling ◽  
Temperature Dependent Magnetization

The temperature-dependent magnetization reversal and spontaneous exchange bias sign switching are simultaneously achieved in La1.5Sr0.5CoMnO6 by Fe ion doping.

Exchange bias induced after zero-field cooling in antiperovskite compounds Ga1-x NMn3+x

2014 ◽  
Vol 252 (3) ◽  
pp. 582-588 ◽  
Author(s):  
J. C. Lin ◽  
P. Tong ◽  
D. P. Cui ◽  
C. Yang ◽  
S. Lin ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Zero Field ◽  
Zero Field Cooling ◽  
Field Cooling

Negative magnetization and zero-field cooled exchange bias effect in Eu0.9Pr0.1CrO3 ceramics

2018 ◽  
Vol 530 ◽  
pp. 95-100 ◽  
Author(s):  
Ping Huang ◽  
Dongmei Deng ◽  
Jiashun Zheng ◽  
Qing Li ◽  
Zhenjie Feng ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Zero Field ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Negative Magnetization

scholarly journals Zero-field cooling exchange bias induced by spin metastable state in MnNiGa system

2021 ◽  
Vol 51 (6) ◽  
pp. 067514
Author(s):  
Jie LI ◽  
Lin GAO ◽  
JiaoJiao DENG ◽  
Yi WANG ◽  
DeWei ZHAO ◽  
...  
Keyword(s):  
Metastable State ◽  
Exchange Bias ◽  
Zero Field ◽  
Zero Field Cooling ◽  
Field Cooling
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