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Electronic properties of the doped antiferromagnet on a kagome lattice

Weiqiang Yu·Shiping Feng
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Abstract

Within the t-J model, we study the electronic properties of the doped antiferromagnet on the kagome lattice based on the framework of the self-consistent mean-field theory. At the half-filling, the spin-liquid ground-state energy per site of the kagome antiferromagnet is Eg/NJ=-0.859, which is in very good agreement with the numerical estimates. Away from the half-filling, the electron photoemission spectroscopy and density of states are discussed, and the results indicate that there is a gap in the normal-state of the system.

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Weiqiang Yu, Shiping Feng. 1999-06-03. Electronic properties of the doped antiferromagnet on a kagome lattice. https://doi.org/10.1103/physrevb.59.13546

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