Dadachanji, Z., Godby, R.W., Needs, R.J. and Littlewood, P.B. (1995) Charge-transfer excitations in the cuprate superconductors. Physical Review B, 52 (22). pp. 16204-16207. ISSN 1098-0121
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Published Version: http://link.aps.org/abstract/PRB/v52/p16204
Abstract
First-principles calculations of the dielectric matrix of the key structural element of the copper-oxide super-conductors show a weakly damped resonance at 3.5 eV which contains most of the oscillator strength in charge-transfer excitations. Such excitations have been proposed as a mediating boson for superconductive pairing. Although this mode is a well-developed and robust excitation, we find its energy to be too large to give high superconducting transition temperatures.
| Item Type: | Article |
|---|---|
| Copyright, Publisher and Additional Information: | © 1995 American Physical Society. |
| Academic Units: | The University of York > Physics (York) |
| Depositing User: | Physics Import |
| Date Deposited: | 25 Sep 2008 10:16 |
| Last Modified: | 25 Sep 2008 10:16 |
| Published Version: | http://link.aps.org/abstract/PRB/v52/p16204 |
| Status: | Published |
| Publisher: | American Physical Society |
| Refereed: | Yes |
| Identification Number: | 10.1103/PhysRevB.52.16204 |
| Related URLs: | |
| URI: | http://eprints.whiterose.ac.uk/id/eprint/3991 |
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