325 citations · 6.3k across the 127 of their papers we have counts for
127 papers
symmetry breaking metal-insulator transitions in a flat band in the half-filled Hubbard model on the decorated honeycomb lattice
H. L. Nourse, Ross H. McKenzie, B. J. Powell
We study the single-orbital Hubbard model on the half-filled decorated honeycomb lattice. In the non-interacting theory at half-filling the Fermi energy lies within a flat band whe…
Spin- Mott insulator to metal to spin- Mott insulator transition in the single-orbital Hubbard model on the decorated honeycomb lattice
H. L. Nourse, Ross H. McKenzie, B. J. Powell
We study the interplay of strong electron correlations and intra-triangle spin exchange at two-thirds filling of the single-orbital Hubbard model on the decorated honeycomb lattice…
Exact mapping from short-ranged harmonic elastic models of spin crossover materials to Ising models with interactions at all length scales
Nadeem Natt, Gian Ruzzi, Jace Cruddas +2
Spin crossover (SCO) materials are reversible molecular switches found in a wide range of transition metal complexes and metal organic frameworks (MOFs). They exhibit diverse spin…
Multiple insulating phases due to the interplay of strong correlations and lattice geometry in a single-orbital Hubbard model
H. L. Nourse, Ross H. McKenzie, B. J. Powell
We report ten ground states arising from strong correlations in the single-orbital Hubbard model on the decorated honeycomb lattice; including Dirac metals, flat-band ferromagnets,…
Orbital-selective bad metals due to Hund's rule and orbital anisotropy: a finite-temperature slave-spin treatment of the two-band Hubbard model
Alejandro Mezio, Ross H. McKenzie
We study the finite-temperature properties of the half-filled two-band Hubbard model in the presence of Hund's rule coupling and orbital anisotropy. We use the mean-field treatment…
Low quasiparticle coherence temperature in the one band-Hubbard model: A slave-boson approach
Alejandro Mezio, Ross H. McKenzie
We use the Kotliar-Ruckenstein slave-boson formalism to study the temperature dependence of paramagnetic phases of the one-band Hubbard model for a variety of band structures. We c…