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Modelling exchange bias with MuMax³

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Abstract
The unidirectional shift of the hysteresis loop and the athermal training effect are two key features of the exchange bias phenomenon in most polycrystalline FM/AFM bilayers. We show that, by using MuMax(3) which is an open source micromagnetic simulation program, we are able to reproduce experimental data (bias field and coercivity) for a polycrystalline Co/CoO bilayer. We also demonstrate that rotatable uncompensated spins can be responsible for the athermal training effect and that the reversal mechanism between the ascending and descending branch in the first hysteresis loop can be different, as has frequently been noticed in experiments.
Keywords
MAGNETIC VISCOSITY, uncompensated, modelling, exchange bias, training effect, hysteresis, MuMax, antiferromagnet, simulation, micromagnetism, MEDIA

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Citation

Please use this url to cite or link to this publication:

Chicago
De Clercq, Jonas, Arne Vansteenkiste, Medjid Abes, Kristiaan Temst, and Bartel Van Waeyenberge. 2016. “Modelling Exchange Bias with MuMax3.” Journal of Physics D-applied Physics 49 (43).
APA
De Clercq, Jonas, Vansteenkiste, A., Abes, M., Temst, K., & Van Waeyenberge, B. (2016). Modelling exchange bias with MuMax3. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 49(43).
Vancouver
1.
De Clercq J, Vansteenkiste A, Abes M, Temst K, Van Waeyenberge B. Modelling exchange bias with MuMax3. JOURNAL OF PHYSICS D-APPLIED PHYSICS. 2016;49(43).
MLA
De Clercq, Jonas, Arne Vansteenkiste, Medjid Abes, et al. “Modelling Exchange Bias with MuMax3.” JOURNAL OF PHYSICS D-APPLIED PHYSICS 49.43 (2016): n. pag. Print.
@article{8159143,
  abstract     = {The unidirectional shift of the hysteresis loop and the athermal training effect are two key features of the exchange bias phenomenon in most polycrystalline FM/AFM bilayers. We show that, by using MuMax(3) which is an open source micromagnetic simulation program, we are able to reproduce experimental data (bias field and coercivity) for a polycrystalline Co/CoO bilayer. We also demonstrate that rotatable uncompensated spins can be responsible for the athermal training effect and that the reversal mechanism between the ascending and descending branch in the first hysteresis loop can be different, as has frequently been noticed in experiments.},
  articleno    = {435001},
  author       = {De Clercq, Jonas and Vansteenkiste, Arne and Abes, Medjid and Temst, Kristiaan and Van Waeyenberge, Bartel},
  issn         = {0022-3727},
  journal      = {JOURNAL OF PHYSICS D-APPLIED PHYSICS},
  keyword      = {MAGNETIC VISCOSITY,uncompensated,modelling,exchange bias,training effect,hysteresis,MuMax,antiferromagnet,simulation,micromagnetism,MEDIA},
  language     = {eng},
  number       = {43},
  pages        = {7},
  title        = {Modelling exchange bias with MuMax{\textthreesuperior}},
  url          = {http://dx.doi.org/10.1088/0022-3727/49/43/435001},
  volume       = {49},
  year         = {2016},
}

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