127 citations · 500 across the 11 of their papers we have counts for
15 papers · 1 filter
Surface anisotropy broadening of the energy barrier distribution in magnetic nanoparticles
Nicolas Perez, Pablo Guardia, Alejandro G. Roca +7
The effect of surface anisotropy on the distribution of energy barriers in magnetic fine particles of nanometer size is discussed within the framework of the scaling…
Particle size and cooling field dependence of exchange bias in core/shell magnetic nanoparticles
Oscar Iglesias, Xavier Batlle, Amilcar Labarta
We present a numerical simulation study of the exchange bias (EB) effect in nanoparticles with core/shell structure aimed to unveil the microscopic origin of some of the experiment…
Microscopic origin of exchange bias in core/shell nanoparticles
Oscar Iglesias, Xavier Batlle, Amilcar Labarta
We report the results of Monte Carlo simulations with the aim to clarify the microscopic origin of exchange bias in the magnetization hysteresis loops of a model of individual core…
From Finite-Size and Surface Effects to Glassy Behaviour in Ferrimagnetic Nanoparticles
Amilcar Labarta, Xavier Batlle, Oscar Iglesias
This chapter is aimed at studying the anomalous magnetic properties (glassy behaviour) observed at low temperatures in nanoparticles of ferrimagnetic oxides. This topic is discusse…
Influence of surface anisotropy on the magnetization reversal of nanoparticles
Oscar Iglesias, Amilcar Labarta
The influence of surface anisotropy on the magnetization processes of maghemite nanoparticles with ellipsoidal shape is studied by means of Monte Carlo simulations. Radial surface…
Magnetic relaxation in a model of interacting nanoparticles in terms of microscopic energy barriers
Oscar Iglesias, Amilcar Labarta
Monte Carlo simulations are used to study the magnetic relaxation of a system of single domain particles with dipolar interactions modeled by a chain of Heisenberg classical spins.…