| Issue |
Europhys. Lett.
Volume 34, Number 3, April 1996
|
|
|---|---|---|
| Page(s) | 219 - 224 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00442-2 | |
| Published online | 01 September 2002 | |
Theory for superconducting properties of the cuprates: doping dependence of the electronic excitations and shadow states
Institut für Theoretische Physik, Freie Universität Berlin,
Arnimallee 14, 14195 Berlin, Germany
Received:
12
October
1995
Accepted:
7
March
1996
The superconducting phase of the 2D one-band Hubbard model is studied
within the FLEX approximation and by using an Eliashberg theory. We
investigate the doping dependence of Tc, of the gap function
and of the effective pairing interaction. Thus
we find that Tc becomes maximal for 
doping. In
overdoped systems Tc decreases due to the weakening of the
antiferromagnetic correlations, while in the underdoped systems due
to the decreasing quasi-particle lifetimes. Furthermore, we find
shadow states below Tc which affect the electronic excitation spectrum
and lead to fine structure in photoemission experiments.
PACS: 74.20.Mn – Microscopic theory of high-Tc superconductivity; insulator-superconductor transitions / 74.72.-h – High-Tc cuprates / 74.25.Jb – Electronic structure
© EDP Sciences, 1996
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.