Articles with "lieb lattice" as a keyword



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Magnonic heat transport in the Lieb lattice

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2018.09.042

Abstract: Abstract In this article we report the effect of charged impurity doping on the thermal spin-wave excitations of 2D Lieb lattice using the longitudinal/transverse and in-plane magnonic heat transport properties in a systematically Green’s function… read more here.

Keywords: lieb lattice; impurity; heat transport; magnonic heat ... See more keywords
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Flat bands and nontrivial topological properties in an extended Lieb lattice

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Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.235145

Abstract: We report the appearance of multiple numbers of completely flat band states in an extended Lieb lattice model in two dimensions with five atomic sites per unit cell. We also show that this edge-centered square… read more here.

Keywords: nontrivial topological; topological properties; lattice; lieb lattice ... See more keywords
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Temperature and doping induced instabilities of the repulsive Hubbard model on the Lieb lattice

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Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.96.245127

Abstract: The properties of a phase at finite interactions can be significantly influenced by the underlying dispersion of the non-interacting Hamiltonian. We demonstrate this by studying the repulsive Hubbard model on the $2$D Lieb lattice, which… read more here.

Keywords: hubbard model; temperature; model lieb; repulsive hubbard ... See more keywords