Numerical study of the exchange bias effects in magnetic nanoparticles with core/shell morphology

2005 ◽  
Vol 71 (13) ◽  
Author(s):  
E. Eftaxias ◽  
K. N. Trohidou
Keyword(s):  
Magnetic Nanoparticles ◽  
Exchange Bias ◽  
Numerical Study ◽  
Shell Morphology ◽  
Core Shell

scholarly journals Shape-dependent exchange bias effect in magnetic nanoparticles with core-shell morphology

2015 ◽  
Vol 92 (6) ◽  
Author(s):  
V. Dimitriadis ◽  
D. Kechrakos ◽  
O. Chubykalo-Fesenko ◽  
V. Tsiantos
Keyword(s):  
Magnetic Nanoparticles ◽  
Exchange Bias ◽  
Shell Morphology ◽  
Core Shell ◽  
Bias Effect ◽  
Exchange Bias Effect

The effects of exchange bias on Fe–Co/MgO magnetic nanoparticles with core/shell morphology

2009 ◽  
Vol 22 (2) ◽  
pp. 026004 ◽  
Author(s):  
C Martinez-Boubeta ◽  
Ll Balcells ◽  
C Monty ◽  
B Martínez
Keyword(s):  
Magnetic Nanoparticles ◽  
Exchange Bias ◽  
Shell Morphology ◽  
Core Shell

A MONTE CARLO STUDY OF THE EXCHANGE BIAS EFFECTS IN MAGNETIC NANOPARTICLES WITH FERROMAGNETIC CORE/ANTIFERROMAGNETIC SHELL MORPHOLOGY

2007 ◽  
Vol 21 (18) ◽  
pp. 1169-1177 ◽  
Author(s):  
E. EFTAXIAS ◽  
M. VASILAKAKI ◽  
K. N. TROHIDOU
Keyword(s):  
Monte Carlo ◽  
Magnetic Nanoparticles ◽  
Exchange Bias ◽  
Monte Carlo Study ◽  
Bias Field ◽  
Shell Morphology ◽  
Shell Size ◽  
Monte Carlo Simulation Technique ◽  
Exchange Bias Field ◽  
Experimental Findings

We have used the Monte Carlo simulation technique to investigate the mechanism that gives the exchange bias effects on composite magnetic nanoparticles with Ferromagnetic (FM) core/Antiferromagnetic (AFM) shell morphology. Our study shows that:. (a) the exchange bias field depends mainly on the structure of the interface and less on its size,. (b) when the shell size becomes bigger than the core size the exchange bias field decreases,. (c) the size of the vertical shift depends on the total number of uncompensated spins in the nanoparticle and. (d) the training effect has its origin to the rearrangement of the spins at the FM/AFM interface. Our results are in good agreement with experimental findings.

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