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arXiv 1302.6663cond-mat.str-elcond-mat.stat-mech
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空间各向异性三角晶格上S = 1海森堡反铁磁体三子格结构的长程序

Long-Range Order of the Three-Sublattice Structure in the S = 1 Heisenberg Antiferromagnet on a Spatially Anisotropic Triangular Lattice

Hiroki Nakano, Synge Todo, Toru Sakai

摘要:

利用数值对角化方法研究了空间各向异性三角晶格上S=1海森堡反铁磁体。我们研究的稳定性之间的各向同性的情况下,孤立的一维链的情况下,在各向同性系统中观察到的三个子晶格结构的长程序。发现具有这种结构的长程有序基态存在于0.7 \simle J_2/J_1 \le 1的范围内,其中J_1是沿链的相互作用振幅,J_2是其它相互作用的振幅。

英文摘要:

We study the S=1 Heisenberg antiferromagnet on a spatially anisotropic triangular lattice by the numerical diagonalization method. We examine the stability of the long-range order of a three-sublattice structure observed in the isotropic system between the isotropic case and the case of isolated one-dimensional chains. It is found that the long-range-ordered ground state with this structure exists in the range of 0.7 \simle J_2/J_1 \le 1, where J_1 is the interaction amplitude along the chains and J_2 is the amplitude of other interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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