62 citations · 107 across the 4 of their papers we have counts for
4 papers
On the electronic structure of electron doped LaOFeAs as seen by X-ray absorption spectroscopy
T. Kroll, S. Bonhommeau, T. Kachel +14
We investigated the recently found superconductor LaO_{1-x}F_xFeAs by X-ray absorption spectroscopy (XAS). From a comparison of the O K-edge with LDA calculations we find good agre…
Electronic structure and Fermi surface tolopogy of NaCoO
A. Bourgeois, A. A. Aligia, T. Kroll +1
We construct an effective Hamiltonian for the motion of T2g highly correlated states in NaxCoO2. We solve exactly a multiband model in a CoO6 cluster with electronic occupation cor…
Quasiparticle dispersion near the Fermi surface in NaCoO
A. Bourgeois, A. A. Aligia, T. Kroll +1
We construct an effective Hamiltonian for the motion of t2g highly correlated states in NaxCoO2. This three-band model includes the indirect Co-O-Co hopping t and the crystal-field…
Polarization dependence of x-ray absorption spectra in Na_xCoO_2
T. Kroll, A. A. Aligia, G. A. Sawatzky
In order to shed light on the electronic structure of Na_xCoO_2, and motivated by recent Co L-edge X-ray absorption spectra (XAS) experiments with polarized light, we calculate the…