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- W2004653013 abstract "We study a geometrically frustrated Hubbard model on the checkerboard lattice with the nearest neighbor (t) and diagonal (t′) hoppings. By using the path-integral renormalization group method, we calculate the double occupancy and the equal-time spin correlation to discuss the ground-state properties at half filling. It is found that the increase of the Coulomb interaction induces the first-order metal–insulator transition to the antiferromagnetically ordered phase for t′/t=0.2. On the other hand, when t′/t=1.0, magnetic correlations are suppressed, where the non-magnetic Mott insulator phase is stabilized in the strong coupling case." @default.
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- W2004653013 date "2007-03-01" @default.
- W2004653013 modified "2023-10-16" @default.
- W2004653013 title "Systematic analysis of the Hubbard model on the checkerboard lattice" @default.
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- W2004653013 doi "https://doi.org/10.1016/j.jmmm.2006.10.1090" @default.
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