Spin liquid phase of the S = 1 2 J 1 − J 2 Heisenberg model on the triangular lattice
Spin liquid phase of the S = 1 2 J 1 − J 2 Heisenberg model on the triangular lattice
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DOI：
10.1103/physrevb.92.041105
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发表时间：
2015-02
影响因子：
3.7
通讯作者：
Zhenyu Zhu;S. White
中科院分区：
文献类型：
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作者：
Zhenyu Zhu;S. White
作者：朱，Z；摘要：©2015美国物理学会。本文研究了具有密度矩阵重整化群的最近邻和次近邻相互作用J1和J2的三角形晶格上的S=1/2 Heisenberg模型。在中间J2区域0.06 <e:2>‰J2/ j1<e:2>‰0.17，我们发现了具有短程自旋-自旋、键-键和手性相关长度的自旋液体（SL）态的证据，在小J2区域以经典的120°Neel有序态为边界，在大J2区域以两个亚晶格共线磁有序态为边界。关注J2/J1=0.1，我们发现了一些间隔SL阶段的特征。
Author(s): Zhu, Z; White, SR | Abstract: © 2015 American Physical Society. We study the S=1/2 Heisenberg model on the triangular lattice with nearest- and next-nearest-neighbor interactions J1 and J2 with the density matrix renormalization group, on long open cylinders with widths up to nine lattice spacings. In an intermediate J2 region 0.06â‰J2/J1â‰0.17, we find evidence for a spin liquid (SL) state with short range spin-spin, bond-bond, and chiral correlation lengths, bordered by a classical 120° Neel ordered state at small J2 and by a two sublattice collinear magnetically ordered state at larger J2. Focusing on J2/J1=0.1, we find a number of signatures of a gapped SL phase.