Spin-Liquid State for Two-Dimensional Heisenberg Antiferromagnets on a Triangular Lattice

Zhan-hai Dong; Shiping Feng

doi:10.1142/S0217984998000792

Spin-Liquid State for Two-Dimensional Heisenberg Antiferromagnets on a Triangular Lattice

Strongly Correlated Electrons 2009-10-31 v1

Authors: Zhan-hai Dong , Shiping Feng

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Abstract

The spin liquid state of the antiferromagnetic Heisenberg model on a triangular lattice is studied within the self-consistent Green's function method. It is shown that the spin excitation spectra is gapless, and ground-state energy per site is $E_{g}/NJ=-0.966$ , which is in very good agreement with the results obtained within the variational Monte Carlo method based on the resonating-valence-bond state. Some thermodynamic properties are also discussed.

Keywords

spin liquid state heisenberg model triangular lattice self-consistent green's function gapless excitation resonating valence bond

Cite

@article{arxiv.cond-mat/9808072,
  title  = {Spin-Liquid State for Two-Dimensional Heisenberg Antiferromagnets on a Triangular Lattice},
  author = {Zhan-hai Dong and Shiping Feng},
  journal= {arXiv preprint arXiv:cond-mat/9808072},
  year   = {2009}
}

Comments

4 pages, Revtex, Three figures are not included, and can be obtained by request ([email protected])

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