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Specific heat of the S=1/2 Heisenberg model on the kagome lattice: high-temperature series expansion analysis

Gregoire Misguich·Bernard Bernu
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Abstract

We compute specific heat of the antiferromagnetic spin-1/2 Heisenberg model on the kagome lattice. We use a recently introduced technique to analyze high-temperature series expansion based on the knowledge of high-temperature series expansions, the total entropy of the system and the low-temperature expected behavior of the specific heat as well as the ground-state energy. In the case of kagome-lattice antiferromagnet, this method predicts a low-temperature peak at T/J<0.1.

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Gregoire Misguich, Bernard Bernu. 2007-03-16. Specific heat of the S=1/2 Heisenberg model on the kagome lattice: high-temperature series expansion analysis. https://doi.org/10.1103/physrevb.71.014417

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