Structure factor of low-energy spin excitations in a S=1/2 kagome antiferromagnet

被引:15
作者
Hao, Zhihao [1 ]
Tchernyshyov, Oleg [1 ]
机构
[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
来源
PHYSICAL REVIEW B | 2010年 / 81卷 / 21期
关键词
HEISENBERG-ANTIFERROMAGNET; LIQUIDS; LATTICE; STATES; CACTUS;
D O I
10.1103/PhysRevB.81.214445
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The ground state of the S=1/2 Heisenberg antiferromagnet on kagome can be viewed as a collection of fermionic spinons bound into small, heavy singlet pairs. Low-energy magnetic excitations in this system correspond to breaking the pairs into individual spinons. We calculate the structure factor for inelastic neutron scattering from independent spinon pairs.
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页数:8
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