M. Nogues

collaborators

3 papers

cond-mat.mtrl-sci1999

Finite-size versus Surface effects in nanoparticles

H. Kachkachi, M. Nogues, E. Tronc +1

We study the finite-size and surface effects on the thermal and spatial behaviors of the magnetisation of a small magnetic particle. We consider two systems: 1) A box-shaped isotro…

cond-mat.mtrl-sci1999

Surface effects in nanoparticles: application to maghemite $γ$ -Fe_{2}O_{3}

H. Kachkachi, A. Ezzir, M. Nogues +1

We present a microscopic model for nanoparticles, of the maghemite ( $γ$ % -Fe $_{2}$ O $_{3}$ ) type, and perform classical Monte Carlo simulations of their magnetic properties. On acco…

cond-mat1999

Field dependence of the temperature at the peak of the ZFC magnetization

H. Kachkachi, W. T. Coffey, D. S. F. Crothers +4

The effect of an applied magnetic field on the temperature at the maximum of the ZFC magnetization, $M_{Z F C}$ , is studied using the recently obtained analytic results of Coffey et…

Finite-size versus Surface effects in nanoparticles

Surface effects in nanoparticles: application to maghemite γ-Fe_{2}O_{3}

Field dependence of the temperature at the peak of the ZFC magnetization

Surface effects in nanoparticles: application to maghemite $γ$ -Fe_{2}O_{3}