Magnon dispersion in the field-induced magnetically ordered phase of TlCuCl3 -: art. no. 077203

被引：161

作者：

Matsumoto, M

Normand, B

Rice, TM

Sigrist, M

机构：

[1] ETH Honggerberg, CH-8093 Zurich, Switzerland

[2] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.89.077203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic properties of the interacting dimer system TlCuCl3 are investigated within a bond-operator formulation. The observed field-induced staggered magnetic order perpendicular to the field is described as a Bose condensation of magnons which are linear combinations of dimer singlet and triplet modes. This technique accounts for the magnetization curve and for the field dependence of the magnon dispersion curves observed by high-field neutron scattering measurements.

引用

页数：4

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