Magneto-thermodynamics of the spin-1/2 Kagome antiferromagnet

Abstract

In this paper, we use a new hybrid method to compute the thermodynamic behavior of the spin-1/2 Kagome antiferromagnet under the influence of a large external magnetic field. We find a T^2 low-temperature behavior and a very low sensitivity of the specific heat to a strong external magnetic field. We display clear evidence that this low temperature magneto-thermal effect is associated to the existence of low-lying fluctuating singlets, but also that the whole picture (T^2 behavior of Cv and thermally activated spin susceptibility) implies contribution of both non magnetic and magnetic excitations. Comparison with experiments is made.

4 pages, LaTeX 2.09 and RevTeX with 3 figures embedded in the text. Version to appear in Phys. Rev. Lett

References in corpus (5)

• Pyrochlore Antiferromagnet: A Three-Dimensional Quantum Spin Liquid
• First excitations of the spin 1/2 Heisenberg antiferromagnet on the kagomé lattice
• Low-energy sector of the S=1/2 Kagome antiferromagnet
• Spin-Liquid phase of the Multiple-Spin Exchange Hamiltonian on the Triangular Lattice
• Spin Liquid in the Multiple-Spin Exchange model on the Triangular lattice: 3He on graphite

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