Is there a phase transition in the isotropic Heisenberg anti-ferromagnet on the triangular lattice?
| dc.contributor.author | Stephan, W | |
| dc.contributor.author | Southern, BW | |
| dc.date.accessioned | 2007-10-10T12:53:52Z | |
| dc.date.available | 2007-10-10T12:53:52Z | |
| dc.date.issued | 2001-12-31 | |
| dc.description.abstract | The phase diagram of the classical anisotropic (XXZ) Heisenberg model on the two-dimensional triangular lattice is investigated using Monte Carlo methods. In the easy-axis limit, two finite-temperature vortex-unbinding transitions have been observed. In the easy-plane limit, there also appear to be two distinct finite-temperature phase transitions that are very close in temperature. The upper transition corresponds to an Ising-like chirality ordering and the lower temperature transition corresponds to a Kosterlitz-Thouless vortex-unbinding transition. These phase-transition lines all meet at the Heisenberg point and provide strong evidence that the isotropic model undergoes a novel finite-temperature phase transition. | en |
| dc.format.extent | 78434 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | 0008-4204; CAN J PHYS, NOV-DEC 2001, vol. 79, no. 39398, p.1459 to 1461. | en |
| dc.identifier.doi | http://dx.doi.org/10.1139/p01-086 | |
| dc.identifier.uri | http://hdl.handle.net/1993/2926 | |
| dc.language.iso | eng | en_US |
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| dc.rights | open access | en_US |
| dc.status | Peer reviewed | en |
| dc.subject | MONTE-CARLO | en |
| dc.subject | QUANTUM ANTIFERROMAGNETS | en |
| dc.subject | SPIN STIFFNESS | en |
| dc.subject | SYSTEMS | en |
| dc.subject | MODEL | en |
| dc.title | Is there a phase transition in the isotropic Heisenberg anti-ferromagnet on the triangular lattice? | en |
| dc.type | journal article | en_US |