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Antiferromagnetic sawtooth chain with Heisenberg and Ising bonds

Antiferromagnetic sawtooth chain with Heisenberg and Ising bonds

The sawtooth chain with pairs of S = 1/2 spins interacting with XXZ-interactions placed on each second tooth is considered. All other interaction bonds are taken to be of Ising type. Exact statistical mechanical solution of the model within the direct transfer-matrix technique is obtained. The sol...

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Bibliographic Details
Main Author: Ohanyan, V.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2009
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/120000
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Summary:The sawtooth chain with pairs of S = 1/2 spins interacting with XXZ-interactions placed on each second tooth is considered. All other interaction bonds are taken to be of Ising type. Exact statistical mechanical solution of the model within the direct transfer-matrix technique is obtained. The solution allows one to obtain exact analytic expressions for all thermodynamic functions of the model. Ground state properties are also investigated, the corresponding ground state phase diagram is presented.

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