51 citations · 411 across the 20 of their papers we have counts for
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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…
Conductance through an array of quantum dots
A. M. Lobos, A. A. Aligia
We propose a simple approach to study the conductance through an array of interacting quantum dots, weakly coupled to metallic leads. Using a mapping to an effective site which…
Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach
A. A. Aligia
We study the differential conductance, spectral density and magnetization, for a quantum dot coupled to two conducting leads as a function of bias voltage, magnetic field and tempe…
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…