Thermodynamic properties of the exactly solvable transverse Ising model on decorated planar lattices
نویسندگان
چکیده
منابع مشابه
Reentrant phenomenon in the exactly solvable mixed spin-1/2 and spin-1 Ising-Heisenberg model on diamond-like decorated planar lattices
Ground-state and finite-temperature behaviour of the mixed spin-1/2 and spin-1 Ising-Heisenberg model on decorated planar lattices consisting of inter-connected diamonds is investigated by means of the generalised decoration-iteration mapping transformation. The obtained exact results clearly point out that this model has a rather complex ground state composed of two unusual quantum phases, whi...
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Magnetic properties of a ternary-spin Ising model on the decorated square lattice are studied within a generalized decoration-iteration transformation. Depending on the mutual ratio between exchange interactions and the single-ion anisotropy, there apprear six different phases in the ground state. The magnetic order of these phases together with the critical behaviour and corresponding magnetiz...
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A hybrid lattice-statistical model of doubly decorated two-dimensional lattices, which have localized Ising spins at its nodal sites and itinerant electrons delocalized over decorating sites, is exactly solved with the help of a generalized decoration-iteration transformation. Under the assumption of a quarter filling of each couple of the decorating sites, the ground state constitutes either s...
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ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2003
ISSN: 0304-8853
DOI: 10.1016/s0304-8853(02)01383-5