127 citations · 383 across the 9 of their papers we have counts for
13 papers
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.…
Magnetic relaxation in terms of microscopic energy barriers in a model of dipolar interacting nanoparticles
Oscar Iglesias, Amilcar Labarta
The magnetic relaxation and hysteresis of a system of single domain particles with dipolar interactions are studied by Monte Carlo simulations. We model the system by a chain of He…
Role of surface disorder on the magnetic properties and hysteresis of nanoparticles
Oscar Iglesias, Amilcar Labarta
We present the results of Monte Carlo simulations of a model of a single maghemite ferrimagnetic nanoparticle including radial surface anisotropy distinct from that in the core wit…