17 citations · 29 across the 4 of their papers we have counts for
4 papers
Bad metal and negative compressibility transitions in a two-band Hubbard model
Raymond Fresard, Kevin Steffen, Thilo Kopp
We analyze the paramagnetic state of a two-band Hubbard model with finite Hund's coupling close to integer filling at in two spacial dimensions. Previously, a Mott metal-insu…
Capacitance and compressibility of heterostructures with strong electronic correlations
Kevin Steffen, Raymond Frésard, Thilo Kopp
Strong electronic correlations related to a repulsive local interaction suppress the electronic compressibility in a single-band model, and the capacitance of a corresponding metal…
Charge instabilities of the two-dimensional Hubbard model with attractive nearest neighbour interaction
Raymond Fresard, Kevin Steffen, Thilo Kopp
Attractive non-local interactions jointly with repulsive local interaction in a microscopic modelling of electronic Fermi liquids generate a competition between an enhancement of t…
Spin-orbit controlled quantum capacitance of a polar heterostructure
Kevin Steffen, Florian Loder, Thilo Kopp
Oxide heterostructures with polar films display special electronic properties, such as the electronic reconstruction at their internal interfaces with the formation of two-dimensio…