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

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

2004-07-11

arxiv.org/abs/cond-mat/0407277v4

Phys. Rev. B 71, 014417 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 5 color figures (.eps), Revtex 4. Change in version 3: Fig. 5 has been corrected (it now shows data for 3 different g

Scientific paper

10.1103/PhysRevB.71.014417

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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