INVESTIGADORES
ZYSLER Roberto Daniel
artículos
Título:
Comparative study of the thermal fluctuations effects on the classical Stoner-Wohlfarth and analytical vector hysteron models
Autor/es:
E. DE BIASI; C.A. RAMOS; R.D. ZYSLER
Revista:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 353 p. 105 - 109
ISSN:
0304-8853
Resumen:
In this work we present a comparative study of the classical Stoner Wohlfarth model and the analytical vector hysteron model. We analyze the hysteretic behavior description when the thermal fluctuations are included. We found a different behavior in the evolution of the coercive field as function of temperature for the vector hysteron model when the anisotropy easy axis is non-parallel to the magnetic field orientation. At low temperatures a plateau is observed as consequence of the switching field behavior. At high temperature both models give identical description of the magnetization behavior, which merges with the superparamagnetic approximation.
