Navigationshilfe

Fakultät für Physik und Geowissenschaften

Hauptnavigation

Zur Navigationshilfe

Seiteninhalt

BO /contentBottomTemplate

Tight binding models for high temperature superconductors


This page lists a set of tight-binding models that are suitable to describe high temperature superconductors

Some of the models have been compiled from the literature for comparison, others are calculated using first principles calculations or adjusted to match experimental measured quantities.
For each model, the hopping parameters are given in a comma separated file (csv), and basic plots of the band structure and Fermi surface are provided for comparison. The tight-binding file contains lines with the following format:
rx, ry, rz, a, b, Re(t), Im(t)
Here ri is the i-th component of the real space vector that describes the hopping process, a and b are integer numbers labeling the orbitals and the last two entries are the real and imaginary part of the hopping (usually given in eV).
The corresponding Bloch Hamiltonian (in orbital representation) can be obtained by a Fourier transform and summation over all lines to yield the matrix Hab.

Models


Directory up
./bscco_akDFT derived model for BSCCO, Wannier function also available
./bscco_choubeyDFT derived model for BSCCO, VASP, Wannier function also available
./roemersimple t-t' model
./ccoc_choubeyDFT derived tight binding model for CCOC, Wannier function also available
./bscco_normantight binding model fitted to ARPES on BSCCO
./bscco_bma
./bscco_bma/2sublattice

Seitenabschlussleiste