Spin gaps in a frustrated Heisenberg model for CaV4O9

被引：175

作者：

White, SR

机构：

[1] Department of Physics and Astronomy, University of California, Irvine, CA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.77.3633

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

I report results of a density matrix renormalization group (DMRG) study of a model for the two-dimensional spin-gapped system CaV4O9. This study represents the first time that DMRG has been used to study a two-dimensional system on large lattices, in this case as targe as 24 x 11, allowing extrapolation to the thermodynamic limit. I present a substantial improvement Ito the DMRG algorithms which makes these calculations feasible.

引用

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页码：3633 / 3636

页数：4

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