Reentrant transitions of Ising-Heisenberg ferromagnet on a triangular lattice with diamond-like decorations

Details Reentrant transitions of Ising-Heisenberg ferromagnet on a triangular lattice with diamond-like decorations Reentrant transitions of Ising-Heisenberg ferromagnet on a triangular lattice with diamond-like decorations

2007-08-30

arxiv.org/abs/0708.4103v1

Acta Phys. Pol. A 113 (2008) 453

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 figures, presented at 13th Czech and Slovak Conference on Magnetism (CSMAG'07), 9.-12. July 2007, Kosice, Slovakia,

Scientific paper

The mixed spin-1/2 and spin-1 Ising-Heisenberg ferromagnet on the decorated triangular lattice consisting of inter-connected diamonds is investigated within the framework of an exact decoration-iteration mapping transformation. It is shown that the diamond-like decoration by a couple of the Heisenberg spins gives rise to a diverse critical behaviour including reentrant phase transitions with two consecutive critical points.

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