Magnetic properties of a hexagonal nanowire system with mixed spin: Application of the stochastic Glauber dynamics with mean-field approximation

The triangular-type Ising nanowire is constructed on the Bethe lattice (BL) by using the core-shell structure consisting of spin-3/2 atoms as the core and spin-1/2 atoms as the triangular shell. Each triangular plaquette of spins forms a nanoparticle which is connected to upper and lower plaquettes symmetrically. The additions of the plaquettes continue indefinitely until the thermodynamic limit to construct the nanowire. The inter- and intra-bilinear interaction parameters (J) are assumed to be positive or negative to simulate the ferromagnetic (FM) or antiferromagnetic (AFM) interactions, respectively. The crystal field for spin-3/2 and external magnetic field for all sites are also included into the model. After obtaining the formulation of the model in terms of exact recursion relations (ERRs), the thermal variations of magnetizations are studied in detail to obtain the phase diagrams. It is found that the model leads to different types of FM and AFM regions with various forms of phase transitions. It is also interesting that the model presents random or oscillatory magnetization behavior regions for the appropriate values of our system parameters.

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Magnetic properties of a hexagonal nanowire system with mixed spin: Application of the stochastic Glauber dynamics with mean-field approximation

Cited by 2 publications

References 33 publications

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Mixed-spin 1/2 and 3/2 core-shell structured triangular Ising nanowire on the Bethe lattice

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