An effective Hamiltonian and its phase diagram for T’-structure cuprates
Abstract
We study the superconducting transition near the half-filling of electron-doped cuprates with the so-called T’-structure based on an effective two-band model using fluctuation-exchange approximation and solving the linearized Eliashberg equation. We find d-wave superconductivity even at the half-filling of this model when the energy difference between the upper Hubbard level of Cu {{{d}}}{x2-{y}2} orbitals and O 2p levels is less than about 1.5eV, which is plausible for the T’-type cuprates.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- July 2017
- DOI:
- 10.1088/1742-6596/871/1/012009
- Bibcode:
- 2017JPhCS.871a2009Y