Effect of uniaxial and biaxial crystal-field potential on magnetic properties of a mixed spin-1/2 and spin-1 Ising model on honeycomb lattice

Abstract

Magnetic properties of a mixed spin-1/2 and spin-1 Ising model on honeycomb lattice are exactly investigated within the framework of generalized star-triangle mapping transformation. The particular attention is focused on the effect of uniaxial and biaxial crystal-field anisotropies that basically influence the magnetic behaviour of the spin-1 atoms. Our results for the basic thermodynamic quantities, as well as the dynamical time-dependent autocorrelation function indicate the spin tunneling between the $|+1>$ and $|-1>$ states in the magnetically ordered phase.

16 pages, 7 figures, submitted to Phys. Rev. B

References in corpus (2)

• Spin-parity dependent tunneling of magnetization in single-molecule magnets
• Thermodynamic properties of the exactly solvable transverse Ising model on decorated planar lattices

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• Mixed spin-1/2 and spin-1 Ising model with uniaxial and biaxial single-ion anisotropy on Bethe lattice
• Exact solution of the mixed-spin Ising model on a decorated square lattice with two different kinds of decorating spins on horizontal and vertical bonds
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• Magnetic behavior of a ferro-ferrimagnetic ternary alloy AB${}_{\rho }$C${}_{1-\rho }$ with a selective site disorder: the case study of a mixed-spin Ising model on a honeycomb lattice