Thermal and magnetic phase transition properties of a binary alloy spherical nanoparticle: A Monte Carlo simulation study

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Vatansever Z., Vatansever E.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.432, ss.239-244, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 432
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.jmmm.2017.01.079
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.239-244
  • Anahtar Kelimeler: Binary alloy systems, Magnetic nanoparticles, Monte Carlo simulation, TRANSVERSE ISING-MODEL, FERROMAGNETIC ALLOY, SHELL STRUCTURE, NANOWIRE, DIAGRAMS, COMPENSATION, BEHAVIOR, SURFACE, SYSTEM, FIELD
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

We have used the Monte Carlo (MC) simulation method with Metropolis algorithm to study the finite temperature phase transition properties of a binary alloy spherical nanoparticle with radius r of the type A(p)B(1)-p. The system consists of two different species of magnetic components, namely, A and B with spins sigma = 1/2 and S =1, respectively. A complete picture of phase diagrams, total magnetizations and susceptibilities in related planes have been presented, and the main roles of the radius of nanoparticle, active concentration value of type-A atoms as well as other system parameters on the thermal and magnetic phase transition features of the considered system have been discussed in detail. Our MC investigations clearly show that it is possible to control the critical characteristic behaviors of the system with the help of adjustable Hamiltonian parameters. (C) 2017 Elsevier B. V. All rights reserved.