139 citations · 594 across the 12 of their papers we have counts for
9 papers · 1 filter
Half-metallicity in NiMnSb: a Variational Cluster Approach with ab-initio parameters
H. Allmaier, L. Chioncel, E. Arrigoni +2
Electron correlation effects in the half-metallic ferromagnet NiMnSb are investigated within a combined density functional and many-body approach. Starting from a realistic multi-o…
Titanium Nitride - a correlated metal at the threshold of a Mott transition
H. Allmaier, L. Chioncel, E. Arrigoni
We investigate electron correlation effects in stoichiometric Titanium Nitride (TiN) using a combination of electronic structure and many-body calculations. In a first step, the Nt…
Dispersive spectrum and orbital order of spinless p-band fermions in an optical lattice
Xiancong Lu, E. Arrigoni
We study single-particle properties of a spinless p-band correlated fermionic gas in an optical lattice by means of a variational cluster approach (VCA). The single-particle spectr…
Model for the Magnetic Order and Pairing Channels in Fe Pnictide Superconductors
M. Daghofer, A. Moreo, J. A. Riera +3
A two-orbital model for Fe-pnictide superconductors is investigated using computational techniques on two-dimensional square clusters. The hopping amplitudes are derived from orbit…
Non-quasiparticle states in CoMnSi evidenced through magnetic tunnel junction spectroscopy measurements
L. Chioncel, Y. Sakuraba, E. Arrigoni +6
We investigate the effects of electronic correlations in the full-Heusler CoMnSi, by combining a theoretical analysis of the spin-resolved density of states with tunneling-cond…
Half-Metallic Ferromagnetism and the spin polarization in CrO
L. Chioncel, H. Allmaier, E. Arrigoni +4
We present electronic structure calculations in combination with local and non-local many-body correlation effects for the half-metallic ferromagnet CrO. Finite-temperature Dyn…