Hexagonal Type Ising Nanowire with Spin-1 Core and Spin-2 Shell Structure

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ERTAŞ M., Kantar E.

COMMUNICATIONS IN THEORETICAL PHYSICS, cilt.64, sa.4, ss.401-408, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 64 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1088/0253-6102/64/4/401
  • Dergi Adı: COMMUNICATIONS IN THEORETICAL PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.401-408
  • Anahtar Kelimeler: hexagonal Ising nanowire, mixed spin-(1,2), effective-field theory, thermodynamic properties, phase diagrams, EFFECTIVE-FIELD THEORY, DYNAMIC COMPENSATION TEMPERATURE, HEISENBERG FERRIMAGNETIC SYSTEM, MAGNETIC-PROPERTIES, MIXED SPIN-1, CRYSTAL-FIELD, HYSTERESIS LOOPS, MONTE-CARLO, OSCILLATING FIELD, ALTERNATE LAYERS
  • Erciyes Üniversitesi Adresli: Evet

Özet

Thermodynamic properties and phase diagrams of a mixed spin-(1,2) Ising ferrimagnetic system with single ion anisotropy on hexagonal nanowire are studied by using effective-field theory with correlations. The susceptibility, internal energy and specific heat of the system are numerically examined and some interesting phenomena in these quantities are found. The effect of the Hamiltonian parameters on phase diagrams are examined in detail. Besides second-order phase transition, lines of first-order transition and tricritical points are found. In particular, we found that for some negative values of single-ion anisotropies, there exist first-order phase transitions.