Theoretical Study of the Bilayer Honeycomb Spin Lattice in Transverse Field with Competing Ferromagnetic and Antiferromagnetic Interactions

In this work we studied theoretically the thermodynamics and magnetization process of this bilayer honeycomb spin lattice structure for the transverse field case using the transverse Ising model (TIM) [1] and mean field approximation (MFA). Theoretical investigations of the magnetization process in the AF bilayer honeycomb spin lattice with FM order in each layer using the Ising spin model in longitudinal and transverse fields have been shown. The obtained results show that the AF exchange interaction coupling has the effect of decreasing the critical fields and magnitude of the longitudinal susceptibility of the film.