Theoretical analysis of the double spin chain compound KCuCl3

M. T. Batchelor, X. W. Guan, N. Oelkers

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We investigate thermal and magnetic properties of the double spin chain compound KCUCI3 via an exactly solved ladder model with strong rung interaction. Results from the analysis of the thermodynamic Bethe Ansatz equations suggests the critical field values Hc1 = 22.74 T and H c2 = 51.34 T, in good agreement with the experimental observations. The temperature dependent magnetic properties are directly evaluated from the exact free energy. Good overall agreement is seen between the theoretical and experimental susceptibility curves. Our results suggest that this compound lies in the strong dimerized phase with an energy gap Δ ≈ 35 K at zero temperature.

Original languageEnglish
Title of host publicationNankai Tracts in Mathematics; Differential Geometry and Physics - Proceedings of the 23rd International Conference of Differential Geometric Methods in Theoretical Physics, DGMTP 2005
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages133-141
Number of pages9
ISBN (Print)9812703772, 9789812703774
Publication statusPublished - 2006
Event23rd International Conference on Differential Geometric Methods in Theoretical Physics, DGMTP 2005 - Tianjin, China
Duration: 20 Aug 200526 Aug 2005

Publication series

NameNankai Tracts in Mathematics; Differential Geometry and Physics - Proceedings of the 23rd International Conference of Differential Geometric Methods in Theoretical Physics, DGMTP 2005
Volume10

Conference

Conference23rd International Conference on Differential Geometric Methods in Theoretical Physics, DGMTP 2005
Country/TerritoryChina
CityTianjin
Period20/08/0526/08/05

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