Effects of Dzyaloshinsky-Moriya Interaction on Planar Rotator Model on Triangular Lattice
Yun-Zhou Sun 1*, Lin Yi 2, Jian-Sheng Wang 31 Department of Physics, Wuhan Textile University, Wuhan 430073, China.
2 Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
3 Department of Physics, National University of Singapore, Singapore 117542, Singapore.
Received 10 April 2010; Accepted (in revised version) 2 February 2011
Available online 29 November 2011
The thermodynamic properties and some critical properties of the planar rotator model with chiral Dzyaloshinsky-Moriya (DM) interaction on triangular lattice are analyzed using a hybrid Monte Carlo method. It has been shown that there is a XY-like Berezinskii-Kosterlitz-Thouless (BKT) phase transition in this model. The ground state of this spiral system and the effects of size mismatch are also discussed.
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PACS: 07.05.Tp, 21.60.Ka, 05.10.Ln, 75.10.Hk
Key words: Critical temperature, Dzyaloshinsky-Moriya interaction, Monte-Carlo simulation, vortex.
Email: firstname.lastname@example.org (Y.-Z. Sun), email@example.com (L. Yi), firstname.lastname@example.org (J.-S. Wang)