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arXiv · 1206.1721

Thermally-induced magnetic phases in an Ising spin Kondo lattice model on a kagome lattice at 1/3-filling

Hiroaki Ishizuka·Yukitoshi Motome
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Abstract

Numerical investigation on the thermodynamic properties of an Ising spin Kondo lattice model on a kagome lattice is reported. By using Monte Carlo simulation, we investigated the magnetic phases at 1/3-filling. We identified two successive transitions from high-temperature paramagnetic state to a Kosterlitz-Thouless-like phase in an intermediate temperature range and to a partially disordered phase at a lower temperature. The partially disordered state is characterized by coexistence of antiferromagnetic hexagons and paramagnetic sites with period $\sqrt3 \times \sqrt3$. We compare the results with those for the triangular lattice case.

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Hiroaki Ishizuka, Yukitoshi Motome. 2012-06-08. Thermally-induced magnetic phases in an Ising spin Kondo lattice model on a kagome lattice at 1/3-filling. https://doi.org/10.3938/jkps.63.579

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