17 citations · 67 across the 6 of their papers we have counts for
6 papers
Charge instabilities of the extended attractive Hubbard Model on the cubic lattice
R. Fresard, V. H. Dao
The paramagnetic phase of the extended attractive Hubbard model on the cubic lattice is studied within the spin rotation invariant Kotliar-Ruckenstein slave-boson representation at…
Intertwined orders from symmetry projected wavefunctions of repulsively interacting Fermi gases in optical lattices
A. Leprévost, O. Juillet, R. Frésard
Unconventional strongly correlated phases of the repulsive Fermi-Hubbard model, which could be emulated by ultracold vapors loaded in optical lattices, are investigated by means of…
Exact results with the Kotliar-Ruckenstein slave-boson representation
Raymond Fresard, Thilo Kopp
Radial slave boson representations have the particular advantage that the expectation values of their respective fields are finite even without the formal introduction of spurious…
Structural transition in LaVO3/SrVO3 superlattices and its influence on transport properties
A. David, R. Frésard, Ph. Boullay +3
Measurements of the resistive properties and the lattice parameters of a (LaVO3)[6 unit cells]/(SrVO3)[1 unit cell] superlattice between 10K and room temperature are presented. A l…
Stripe segregation and magnetic coupling in the nickelate La_5/3 Sr_1/3 NiO_4
Udo Schwingenschloegl, Cosima Schuster, Raymond Fresard
We investigate the consequences of the stripe formation in the nickelate La5/3Sr1/3NiO4 for the details of its crystal structure and electronic states. Our data are based on numeri…
Microscopic Derivation of Magnetic Coupling in Ca3Co2O6
C. Laschinger, T. Kopp, V. Eyert +1
For cobalt atoms placed along chain structures in Ca3Co2O6, we investigate the spin exchange coupling between atoms in high spin states. Consistent with experimental findings, the…