Monte Carlo Simulations of the Exchange Bias Effect in Heusler Ni50Mn37.5Sb12.5 Alloys Using Real Unit Cell

2011 ◽  
Vol 1310 ◽  
Author(s):  
Vasiliy D. Buchelnikov ◽  
Ivan A. Taranenko ◽  
Vladimir V. Sokolovskiy ◽  
Sergey V. Taskaev ◽  
Mikhail A. Zagrebin ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Periodic Boundary ◽  
Three Dimensional ◽  
Periodic Boundary Conditions ◽  
Bias Field ◽  
Magnetic Interactions ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Cubic Lattice ◽  
Coordination Spheres

ABSTRACTIn present work we propose a theoretical model for investigation of the exchange bias effect in Ni50Mn37.5Sb12.5 alloy. In the model, we use a three-dimensional cubic lattice with periodic boundary conditions. Also we take into account the magnetic interactions between atoms in 1st, 2nd and 3rd coordination spheres and the ferromagnetic and antiferromagnetic anisotropy terms. It is shown that the obtained theoretical temperature dependence of the exchange bias field for Ni50Mn37.5Sb12.5 alloy is close to the experimental data.

scholarly journals Exchange Bias Effect in LaFeO3: La0.7Ca0.3MnO3 Composite Thin Films

Coatings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1125
Author(s):  
Feng Wang ◽  
Wei Fu ◽  
Chengming Jiang ◽  
Junxiao Li ◽  
Jijie Huang
Keyword(s):  
Thin Films ◽  
Exchange Bias ◽  
Physical Property ◽  
Bias Field ◽  
Magnetic Storage ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Composite Thin Films ◽  
Composition Variation ◽  
Two Phases

Composite thin films arouse great interests owing to the multifunctionalities and heterointerface induced physical property tailoring. The exchange bias effect aroused from the ferromagnetic (FM)–antiferromagnetic (AFM) heterointerface is applicable in various applications such as magnetic storage. In this work, (LaFeO3)x:(La0.7Ca0.3MnO3)1−x composite thin films have been deposited via pulsed laser deposition (PLD) and the exchange bias effect was investigated. In such system, LaFeO3 (LFO) is an antiferromagnet while La0.7Ca0.3MnO3 (LCMO) is a ferromagnet, which results in the exchange bias interfacial coupling at the FM/AFM interface. The composition variation of the two phases could lead to the exchange bias field (HEB) tuning in the composite system. This work demonstrates a new composite thin film system with FM-AFM interfacial exchange coupling, which could be applied in various spintronic applications.

A simulation approach for the finite-temperature magnetic properties, stochastic dynamics and heating properties of magnetic nanoparticles composed of FM core/AFM shell

2019 ◽  
Vol 33 (23) ◽  
pp. 1950269
Author(s):  
Yusuf Yüksel
Keyword(s):  
Exchange Bias ◽  
Shell Thickness ◽  
Stochastic Dynamics ◽  
Three Dimensional ◽  
Simulation Method ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Loop Area ◽  
Wide Range ◽  
Hysteresis Loop Area

Using the Monte Carlo simulation method based on the Metropolis algorithm, we present some results regarding the magnetic and heating properties of three-dimensional nanoparticles composed of a ferromagnetic core surrounded by an antiferromagnetic shell. We investigate the variation of the exchange bias effect and its dependence on the particle shell thickness, as well as on the temperature. In terms of the stochastic dynamics, we applied a time-dependent alternating magnetic field on the system, and calculated the dynamic-order parameters, response functions and the hysteresis loop area from the AC hysteresis curves from which we have also quantified the specific absorption rate (SAR) of the particle over a wide range of field frequencies. A number of interesting results have been found regarding the variation of the heating properties of the system as a function of the antiferromagnetic shell thickness and the period of the alternating field.

Antisite-disorder driven large exchange bias effect in phase separated La1.5Ca0.5CoMnO6 double perovskite

2017 ◽  
Vol 428 ◽  
pp. 86-91 ◽  
Author(s):  
R.C. Sahoo ◽  
D. Paladhi ◽  
Papri Dasgupta ◽  
A. Poddar ◽  
Ripandeep Singh ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Double Perovskite ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Antisite Disorder

Analysis of exchange bias effect of NiO+NiFe2O4 composites

2010 ◽  
Vol 322 (1) ◽  
pp. 79-83 ◽  
Author(s):  
J.H. He ◽  
S.L. Yuan ◽  
S.Y. Yin ◽  
K.L. Liu ◽  
P. Li ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Bias Effect ◽  
Exchange Bias Effect

Exchange bias effect in nickel zinc ferrite–mesoporous silica nanocomposites

2013 ◽  
Vol 332 ◽  
pp. 98-102 ◽  
Author(s):  
Shilpi Banerjee ◽  
Partha Hajra ◽  
Mykanth Reddy Mada ◽  
Asim Bhaumik ◽  
Sri Bandyopadhyay ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Exchange Bias ◽  
Zinc Ferrite ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Silica Nanocomposites ◽  
Nickel Zinc

Large exchange bias effect in NiFe2O4/CoO nanocomposites

2018 ◽  
Vol 5 (3) ◽  
pp. 035029 ◽  
Author(s):  
Rajendra Mohan ◽  
Mritunjoy Prasad Ghosh ◽  
Samrat Mukherjee
Keyword(s):  
Exchange Bias ◽  
Bias Effect ◽  
Exchange Bias Effect

Synthesis and exchange bias effect of single-crystalline SrMn3O6−δ nanoribbons

2009 ◽  
Vol 94 (18) ◽  
pp. 182506 ◽  
Author(s):  
J. Y. Yu ◽  
S. L. Tang ◽  
X. K. Zhang ◽  
L. Zhai ◽  
Y. G. Shi ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Single Crystalline
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