Electronic States and Superconductivity in Multi-layer High-Tc Cuprates

Preprint
Publisher Website
Google Scholar
  • 19 December 2001
Abstract
We study electronic states of multi-layer cuprates in the normal phases as functions of the number of CuO_2 planes and the doping rate. The resonating valence bond (RVB) wave function and the Gutzwiller approximation are used for a two-dimensional multi-layer t-t'-t''-J model. We calculate the electron-removal spectral functions at (\pi,0) in the CuO_2 plane next to the surface to understand the angle-resolved photoemission spectroscopy (ARPES) spectra. We find that the tri-layer spectrum is narrower than the bi-layer spectrum but is wider than the mono-layer spectrum. In the tri- and tetra-layer systems, the outer \cuo plane has different superconducting amplitude from the inner CuO_2 plane, while each layer in the bi-layer systems has same amplitude. The recent ARPES and NMR experiments are discussed in the light of the present theory.

This publication has 0 references indexed in Scilit: