Low dimensional mixed-spin Ising model with next-nearest neighbor interaction

ÖZKAN A., KUTLU B.

SUPERLATTICES AND MICROSTRUCTURES, cilt.111, ss.736-743, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 111
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.spmi.2017.07.029
  • Dergi Adı: SUPERLATTICES AND MICROSTRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.736-743
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, the effects of next-nearest neighbor interaction on a one-dimensional mixed spin 3 - spin 3/2 Ising model was investigated using Cellular Automaton (CA). The Ising model hamiltonian contains the antiferromagnetic nearest neighbor interaction (J(1)), the ferromagnetic next- nearest neighbor interaction (J(2)) and the external magnetic field (h = H/J(1)). Magnetization (M) of the mixed spin system was obtained in the interval 0 <= R <= 1 of the interaction ratio (R = J(2)/J(1)) using field cooling (FC) and zero-field cooling (ZFC) processes. Hysteresis curves were drawn for several R values in the interval -0.1 <= h <= 0.1 using FC results. The functional behavior for coercive field (H-C) was determined depending on R. Thus, the mixed spin system became a hard magnetic material and the lattice geometry also changed from one dimensional linear chain to triangular chain with increasing R value. (C) 2017 Elsevier Ltd. All rights reserved.