Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102132
Title: Universal Berezinskii-Kosterlitz-Thouless dynamic scaling in the intermediate time range in frustrated Heisenberg antiferromagnets on a triangular lattice
Authors: Popov, I. S.
Prudnikov, P. V.
Ignatenko, A. N.
Katanin, A. A.
Issue Date: 2017
Publisher: American Physical Society
Citation: Universal Berezinskii-Kosterlitz-Thouless dynamic scaling in the intermediate time range in frustrated Heisenberg antiferromagnets on a triangular lattice / I. S. Popov, P. V. Prudnikov, A. N. Ignatenko, et al. — DOI 10.1103/PhysRevB.95.134437 // Physical Review B. — 2017. — Vol. 95. — Iss. 13. — 134437.
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. © 2017 American Physical Society.
Keywords: DEGREES OF FREEDOM (MECHANICS)
ELECTRON ENERGY ANALYZERS
SPIN WAVES
VORTEX FLOW
X-Y MODEL
BEREZINSKII-KOSTERLITZ-THOULESS TRANSITION
BROAD TEMPERATURE RANGES
CRITICAL RELAXATION
DYNAMIC TRANSITIONS
HEISENBERG ANTIFERROMAGNETS
KOSTERLITZ-THOULESS
NON-EQUILIBRIUM PROPERTIES
TRIANGULAR LATTICE
ANTIFERROMAGNETIC MATERIALS
URI: http://hdl.handle.net/10995/102132
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85018479470
PURE ID: 1815853
ISSN: 24699950
DOI: 10.1103/PhysRevB.95.134437
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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