中国物理B ›› 1998, Vol. 7 ›› Issue (5): 348-353.doi: 10.1088/1004-423X/7/5/005

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THEORETICAL STUDY OF THE GROUND-STATE PROPERTY OF THE TWO-DIMENSIONAL HEISENBERG ANTIFERROMAGNET ON A TRIANGULAR LATTICE

董占海1, 冯世平2   

  1. (1)Department of Physics, Beijing Normal University,Beijing 100875, China; (2)State Key Laboratory of Superconductivity,Academia Sinica,Beijing 100080, China
  • 收稿日期:1997-04-04 出版日期:1998-05-20 发布日期:1998-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and by the Trans-Century Training Programme Foundation for the Talents by the State Education Commission of China.

THEORETICAL STUDY OF THE GROUND-STATE PROPERTY OF THE TWO-DIMENSIONAL HEISENBERG ANTIFERROMAGNET ON A TRIANGULAR LATTICE

DONG ZHAN-HAI (董占海)a, FENG SHI-PING (冯世平)ab   

  1. a Department of Physics, Beijing Normal University,Beijing 100875, China; b State Key Laboratory of Superconductivity,Academia Sinica,Beijing 100080, China
  • Received:1997-04-04 Online:1998-05-20 Published:1998-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and by the Trans-Century Training Programme Foundation for the Talents by the State Education Commission of China.

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摘要： Within the Tyablikov's theoretical framework, the ground-state property of the two-dimensional antiferromagnetic Heisenberg model on a triangular lattice is studied. Our results show that the sublattice magnetization is M=0.241 and the ground-state energy per bond is Eg/ NZJ =-0.166, which are in agreement with the numerical simulations.

Abstract: Within the Tyablikov's theoretical framework, the ground-state property of the two-dimensional antiferromagnetic Heisenberg model on a triangular lattice is studied. Our results show that the sublattice magnetization is M=0.241 and the ground-state energy per bond is Eg/ NZJ =-0.166, which are in agreement with the numerical simulations.

中图分类号:  (Quantized spin models, including quantum spin frustration)

  • 75.10.Jm
75.40.Mg (Numerical simulation studies) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)