Antiferromagnetic sawtooth chain with Heisenberg and Ising bonds

Abstract

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 stated properties are also investigated, the corresponding ground state phase diagram is presented.

9 pages, 8 figures

References in corpus (1)

• Exact solution of the mixed spin-1/2 and spin-S Ising-Heisenberg diamond chain

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