Phase-field-crystal model for magnetocrystalline interactions in isotropic ferromagnetic solids.
Phys Rev E Stat Nonlin Soft Matter Phys
; 88(3): 032407, 2013 Sep.
Article
en En
| MEDLINE
| ID: mdl-24125276
ABSTRACT
An isotropic magnetoelastic phase-field-crystal model to study the relation between morphological structure and magnetic properties of pure ferromagnetic solids is introduced. Analytic calculations in two dimensions were used to determine the phase diagram and obtain the relationship between elastic strains and magnetization. Time-dependent numerical simulations in two dimensions were used to demonstrate the effect of grain boundaries on the formation of magnetic domains. It was shown that the grain boundaries act as nucleating sites for domains of reverse magnetization. Finally, we derive a relation for coercivity versus grain misorientation in the isotropic limit.
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01-internacional
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MEDLINE
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En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Asunto de la revista:
BIOFISICA
/
FISIOLOGIA
Año:
2013
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Article