Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates

Details Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates

2002-05-29

arxiv.org/abs/cond-mat/0205616v1

Physics

Condensed Matter

Superconductivity

6 pages, LaTeX2e, submitted to Int. J. Mod. Phys. B

Scientific paper

10.1142/S0217984902004160

A detailed Linear Combination of Atomic Orbitals (LCAO) tight-binding model is developed for the layered High-Temperature Superconductor cuprates. The band structure of these materials is described using a sigma-band Hamiltonian employing Cu4s, Cu3d_x^2-y^2, O2p_x and O2p_y atomic orbitals. The Fermi level and the shape of the resulting Fermi surface are fitted to recent Angle Resolved Photon Emission Spectroscopy (ARPES) data to realistically determine the dispersion in the conduction band. Electron-electron interactions and, ultimately, Cooper pairing is obtained by introducing a Heitler-London, two-electron exchange between adjacent orbitals within the CuO_2 plane. Finally, using the LCAO wavefunctions determined by the band structure fit, the Bardeen-Cooper-Schrieffer type kernel is derived for interatomic exchange.

Affiliated with

Also associated with

No associations

Rating

Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced pairing hamiltonian for interatomic two-electron exchange in layered cuprates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-169060