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

YÜKSEL Y., AKINCI Ü.

JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.28, sa.48, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 48
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1088/0953-8984/28/48/486003
  • Dergi Adı: JOURNAL OF PHYSICS-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: dynamic phase transition, exchange bias, magnetization, Monte Carlo, nanoparticle, CORE/SHELL NANOPARTICLES, BIOMEDICAL APPLICATIONS, HYSTERESIS LOOPS, NANOSTRUCTURES, ANISOTROPY, MODEL, ENHANCEMENT, TEMPERATURE, COERCIVITY, SIMULATION
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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.