INVESTIGADORES
BERCOFF Paula Gabriela
artículos
Título:
Magnetic behavior of partially exchange-coupled particles
Autor/es:
MARCOS OLIVA; PAULA GABRIELA BERCOFF; HÉCTOR RAÚL BERTORELLO
Revista:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2005 vol. 294 p. 91 - 94
ISSN:
0304-8853
Resumen:
A system of particle pairs with partial exchange coupling is studied, considering identical particles and a fixed angle between their anisotropy axes. The energy of each pair is calculated in terms of the extent of interaction, b, as a function of the applied demagnetizing field. Using the probability per unit time for the inversion of magnetization, the coercive field Hc and the viscosity S of the system are calculated. An unexpected result is that fully coupled particles are more stable against temperature than the uncoupled particles.
