Influence of time dependent longitudinal magnetic fields on the cooling process, exchange bias and magnetization reversal mechanism in FM core/AFM shell nanoparticles: a Monte Carlo study
JOURNAL OF PHYSICS-CONDENSED MATTER, vol.28, no.48, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 28 Issue: 48
- Publication Date: 2016
- Doi Number: 10.1088/0953-8984/28/48/486003
- Journal Name: JOURNAL OF PHYSICS-CONDENSED MATTER
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: dynamic phase transition, exchange bias, magnetization, Monte Carlo, nanoparticle
- Dokuz Eylül University Affiliated: Yes
Abstract
Using Monte Carlo simulations, we have investigated the dynamic phase transition properties of magnetic nanoparticles with ferromagnetic core coated by an antiferromagnetic shell structure. Effects of field amplitude and frequency on the thermal dependence of magnetizations, magnetization reversal mechanisms during hysteresis cycles, as well as on the exchange bias and coercive fields have been examined, and the feasibility of applying dynamic magnetic fields on the particle have been discussed for technological and biomedical purposes.