Spin-Liquid Ground State of the S=1/2 Kagome Heisenberg Antiferromagnet

被引：981
|
作者：
Yan, Simeng [1 ]
Huse, David A. [2 ,3 ]
White, Steven R. [1 ]
机构：
[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92617 USA
[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
[3] Inst Adv Study, Princeton, NJ 08540 USA
来源：
SCIENCE | 2011年 / 332卷 / 6034期
关键词：
QUANTUM RENORMALIZATION-GROUPS; VALENCE-BOND STATE; EXCITATIONS; LATTICE; GAP;
D O I：
10.1126/science.1201080
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We use the density matrix renormalization group to perform accurate calculations of the ground state of the nearest-neighbor quantum spin S = 1/2 Heisenberg antiferromagnet on the kagome lattice. We study this model on numerous long cylinders with circumferences up to 12 lattice spacings. Through a combination of very-low-energy and small finite-size effects, our results provide strong evidence that, for the infinite two-dimensional system, the ground state of this model is a fully gapped spin liquid.
引用
收藏
页码：1173 / 1176
页数：4
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