Dynamic response of mixed-spin bilayer systems with graphene-like geometry to a time-dependent magnetic field

Yezli M., ERTAŞ M.

Physica A: Statistical Mechanics and its Applications, cilt.682, 2026 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 682
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.physa.2025.131183
  • Dergi Adı: Physica A: Statistical Mechanics and its Applications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Artic & Antarctic Regions, Compendex, INSPEC, MathSciNet, Public Affairs Index, zbMATH
  • Anahtar Kelimeler: Bilayer graphene-like structure, Glauber transition rates, Mean field theory, Dynamic properties
  • Erciyes Üniversitesi Adresli: Evet

Özet

In this paper, the dynamic response of a mixed-spin (1/2, 3/2) bilayer graphene-like structure to a time-dependent magnetic field is investigated using dynamic mean-field theory (MFT). The dynamic equations are derived via Glauber transition rates and solved using Adams-Moulton and Romberg integration methods. The effects of Hamiltonian parameters on the system's dynamic behavior are thoroughly analyzed. The system exhibits various types of dynamic compensation behavior (P, Q, N, S, R, and L-type), each reflecting distinct magnetization reversal mechanisms under oscillating fields. Dynamic phase diagrams in the reduced temperature–magnetic field plane reveal both fundamental phases (F, P, C, NM) and mixed phases (C+P, F+P, F+NM, NM+P, F+C), along with reentrant transitions and multicritical points such as the dynamic double critical end point (B) and the dynamic triple point (TP). These findings highlight the rich dynamic behavior of the system and its sensitivity to external field parameters, offering insights into the design of tunable magnetic materials.