INVESTIGADORES
DE BIASI Emilio
artículos
Título:
Comparative study of the thermalfluctuations 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: 2013 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 thermalfluctuations are included. We found a different behavior in the evolution of the coercivefield 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 switchingfield behavior. At high temperature both models give identical description of the magnetization behavior, which merges with the superparamagnetic approximation.
