Spin-charge separation in two-dimensional frustrated quantum magnets -: art. no. 236404

被引：41

作者：

Läuchli, A ^{[1
]}

Poilblanc, D ^{[1
]}

机构：

[1] Univ Toulouse 3, Phys Theor Lab, CNRS, UMR 5152, F-31062 Toulouse, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.92.236404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of a mobile hole in two-dimensional frustrated quantum magnets is investigated by exact diagonalization techniques. Our results provide evidence for spin-charge separation upon doping the kagome lattice, a prototype of a spin liquid. In contrast, in the checkerboard lattice, a symmetry broken valence bond crystal, a small quasiparticle peak is seen for some crystal momenta, a finding interpreted as a restoration of weak holon-spinon confinement.

引用

页码：236404 / 1

页数：4

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