47 citations · 94 across the 5 of their papers we have counts for
5 papers
Phase coexistence in a half-filled extended Hubbard model
Loïc Philoxene, Vu-Hung Dao, Raymond Frésard
In this Letter we analyze the coexisting ordered phases that arise in the half-filled -t-U-V extended Hubbard Model on the square lattice when tackled within the Kotli…
Spin and charge modulations of a half-filled extended Hubbard model
Loïc Philoxene, Vu Hung Dao, Raymond Frésard
We introduce and analyze an extended Hubbard model, in which intersite Coulomb interaction as well as a staggered local potential (SLP) are considered, on the square lattice at hal…
Collective modes in the paramagnetic phase of the Hubbard model
Vu Hung Dao, Raymond Frésard
The charge dynamical response function of the Hubbard model is investigated on the square lattice in the thermodynamical limit. The obtained charge excitation spectra consist of a…
Thermoelectric transport properties of an apparent Fermi liquid: Relation to an analytic anomaly in the density of states and application to hole-doped delafossites
Stefan Kremer, Raymond Frésard
Through the motivation of the recent discovery of dispersionless regions in the band structure of the delafossites, a model density of states of free fermions including a discontin…
One-Electron Spectral Functions of the Attractive Hubbard Model for Intermediate Coupling
Maxim Yu. Kagan, Raymond Frésard, Massimiliano Capezzali +1
We calculate the one-electron spectral function of the attractive (negative-) Hubbard model. We work in the intermediate coupling and low density regime and obtain the self-ener…