Magnon Dispersion in the Field-Induced Magnetically Ordered Phase of TlCuCl3

Abstract

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.

4 pages, 4 figures, REVTeX4

References in corpus (3)

• Observation of Field-Induced Transverse Néel Ordering in the Spin Gap System TlCuCl${}_3$
• Magnetic properties and spin waves of bilayer magnets in a uniform field
• Field-Induced Magnetic Order in Quantum Spin Liquids

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