Phenomenological BCS Theory of the High- Tc Cuprates
Abstract
BCS theory is applied to a model characterized by a pair potential withon-site \(V0\), nearest \(V1\), and next nearest \(V2\) neighbor interactions, and the experimental quasiparticle dispersion of the cuprates. Three ingredients are required for a consistent interpretation of the experimental data concerning the pair state of hole-doped copper oxides: the existence of flat bands, a small repulsive V0, and a slightly dominating attractive V2 of the order of 60-80 meV with a ratio V2/V1~1.3-1.5.
- Publication:
-
Physical Review Letters
- Pub Date:
- May 1995
- DOI:
- 10.1103/PhysRevLett.74.3884
- arXiv:
- arXiv:cond-mat/9412067
- Bibcode:
- 1995PhRvL..74.3884F
- Keywords:
-
- Condensed Matter;
- Condensed Matter - Superconductivity
- E-Print:
- 13 pages, uuencoded Postscript