Sarma, D. D. ; Taraphder, A. (1989) Electronic structure of high-Tc cuprates from core-level photoemission spectroscopy Physical Review B: Condensed Matter and Materials Physics, 39 (16). pp. 11570-11574. ISSN 1098-0121
Full text not available from this repository.
Official URL: http://prb.aps.org/abstract/PRB/v39/i16/p11570_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.39.11570
Abstract
The core photoemission spectrum of a copper +2 impurity embedded in a square lattice of oxygen -2 has been calculated using an extended Anderson impurity Hamiltonian including a Cu 3d hole-O 2p hole repulsive interaction. Comparison with experimental data shows that the ground state of the system is a mixed-valent insulator in the absence of hole doping, in spite of the Cu 3d level being within the oxygen 2p-derived band. Doping of an extra hole induces a transition to a weakly mixed-valent metallic state with drastic modifications in the calculated core-level spectrum.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 46385 |
| Deposited On: | 04 Jul 2011 11:38 |
| Last Modified: | 04 Jul 2011 11:38 |
Repository Staff Only: item control page
