Theory of superconductivity and spin excitations in cuprates
Abstract
A microscopic theory of high-temperature superconductivity in strongly correlated systems as cuprates is presented. The two-subband extended Hubbard model is considered where the intersite Coulomb repulsion and electron-phonon interaction are taken into account. The low-energy spin excitations are considered within the t-J model.
- Publication:
-
Physica C Superconductivity
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.physc.2018.02.030
- Bibcode:
- 2018PhyC..549...69P
- Keywords:
-
- Strongly correlated electron systems;
- Hubbard model;
- Unconventional mechanisms;
- Spin excitations;
- Cuprate superconductors