Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8203512 | Physics Letters A | 2018 | 7 Pages |
Abstract
We study a stacked triangular lattice Ising model with both intra- and inter-plane antiferromagnetic interactions in a field, by Monte Carlo simulation. We find only one phase transition from a paramagnetic to a partially disordered phase, which is of second order and 3D XY universality class. At low temperatures we identify two highly degenerate phases: at smaller (larger) fields the system shows long-range ordering in the stacking direction (within planes) but not in the planes (stacking direction). Nevertheless, crossovers to these phases do not have a character of conventional phase transitions but rather linear-chain-like excitations.
Related Topics
Physical Sciences and Engineering
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Authors
M. ŽukoviÄ, M. Borovský, A. Bobák,