An Upper Bound for the Spin-Wave Spectrum of the Heisenberg Antiferromagnet

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概要

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• We study the spin-wave spectrum of the Heisenberg antiferromagnet on a bipartite lattice. The spin-wave spectrum on a Neel-ordered ground state is bounded as ε(k) ≤ c|k|, where c gives an upper bound for the spin-wave velocity. In the large-S limit, the upper bound c coincides with the result of the spin-wave theory.

• 社団法人日本物理学会の論文
• 1994-07-15

著者

• Momoi Tsutomu

  Department Of Physics Faculty Of Science University Of Tokyo

• Momoi Tsutomu

  Department Of Physics University Of Tokyo

関連論文

• Ground-State Properties and Phase Diagram of the Quantum XXZ Antiferromagnet on a Triangular Lattice
• An Upper Bound for the Spin-Wave Spectrum of the Heisenberg Antiferromagnet
• Vector Chiral Order in the Quantum XXZ Antiferromagnet on a Triangular Lattice Analyzed with the Super-Effective-Field Theory

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