Journal
PHYSICS OF THE SOLID STATE
Volume 52, Issue 8, Pages 1673-1679Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063783410080172
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Funding
- Russian Foundation for Basic Research [10-02-00130, 06-02-96602]
- Russian Federation [NSh-5547.2006.2]
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The critical properties and phase transitions of the three-dimensional frustrated antiferromagnetic Heisenberg model on a triangular lattice have been investigated using the Monte Carlo method with a replica algorithm. The critical temperature has been determined and the character of the phase transitions has been analyzed using the method of fourth-order Binder cumulants. A second-order phase transition has been found in the three-dimensional frustrated Heisenberg model on a triangular lattice. The static magnetic and chiral critical exponents of the heat capacity alpha, the susceptibility gamma and gamma (k) , the magnetization beta and beta (k) , the correlation length nu and nu (k) , as well as the Fisher exponents eta and eta (k) , have been calculated in terms of the finite-size scaling theory. It has been demonstrated that the three-dimensional frustrated antiferromagnetic Heisenberg model on a triangular lattice forms a new universality class of the critical behavior.
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