Phase Diagrams of the Spin-1/2 Ising-Heisenberg Model on a Triangle-Hexagon Lattice |
| J. Kiššová and J. Strečka
Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 040 01 Košice, Slovak Republic |
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| Ground-state and finite-temperature phase diagrams of a geometrically frustrated spin-1/2 Ising-Heisenberg model on a triangle-hexagon lattice are investigated within the generalized star-triangle mapping transformation. It is shown that the ground state is constituted by two different spontaneously long-range ordered phases and one disordered spin-liquid phase. |
| DOI: 10.12693/APhysPolA.118.730 PACS numbers: 05.30.Rt, 05.50.+q, 05.70.Jk, 75.10.Kt, 75.10.Jm, 75.30.Kz |