Universal Berezinskii-Kosterlitz-Thouless dynamic scaling in the intermediate time range in frustrated Heisenberg antiferromagnets on a triangular lattice Full article
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Physical Review B
ISSN: 2469-9950 |
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| Output data | Year: 2017, Volume: 95, Article number : 134437, Pages count : 9 DOI: 10.1103/physrevb.95.134437 | ||||||
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| Affiliations |
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Funding (4)
| 1 | Совет по грантам Президента РФ | МД-6024.2016.2 |
| 2 | Russian Foundation for Basic Research | 14-32-50632 |
| 3 | Russian Foundation for Basic Research | 14-02-00953 |
| 4 | Russian Foundation for Basic Research | 17-02-00279 |
Abstract:
We investigate nonequilibrium properties of the frustrated Heisenberg antiferromagnets on the triangular lattice. Nonequilibrium critical relaxation of frustrated Heisenberg antiferromagnets shows a dynamic transition (or, at least, sharp crossover) near the temperature Tu=0.282J of the equilibrium Z2-vortex unbinding. We show that starting from the high-temperature initial state, due to the presence of Z2 vortices in the system being considered, in a broad temperature range T<Tu the dynamic properties in the intermediate time range are similar to those of the two-dimensional XY model below the Berezinskii-Kosterlitz-Thouless transition. The interaction of Z2 vortices with spin-wave degrees of freedom does not emerge until rather long times.
Cite:
Popov I.S.
, Prudnikov P.V.
, Ignatenko A.N.
, Katanin A.A.
Universal Berezinskii-Kosterlitz-Thouless dynamic scaling in the intermediate time range in frustrated Heisenberg antiferromagnets on a triangular lattice
Physical Review B. 2017. V.95. 134437 :1-9. DOI: 10.1103/physrevb.95.134437 Scopus OpenAlex
Universal Berezinskii-Kosterlitz-Thouless dynamic scaling in the intermediate time range in frustrated Heisenberg antiferromagnets on a triangular lattice
Physical Review B. 2017. V.95. 134437 :1-9. DOI: 10.1103/physrevb.95.134437 Scopus OpenAlex
Dates:
| Submitted: | Nov 20, 2016 |
| Published print: | Apr 21, 2017 |
Identifiers:
| Scopus: | 2-s2.0-85018479470 |
| OpenAlex: | W3143255496 |