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Weak versus Strong Coupling Theory for Bi2Sr2CaCu2O8

Published

Author(s)

Marvin Cohen, David R. Penn

Abstract

The latest optical determination of the superconducting-gap function for Bi2Sr2CaCu2O8 is consistent with weak-coupling theory. In contrast, a large discontinuity in heat-capacity data suggests strong-coupling superconductivity, and appears to exceed the theoretical strong-coupling limit. A possible resolution to the apparent incompatibility of the two measurements is presented. The apparent disagreement with the results of strong-coupling theory is also resolved.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
42
Issue
13

Citation

Cohen, M. and Penn, D. (1990), Weak versus Strong Coupling Theory for Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8</sub>, Physical Review B (Condensed Matter and Materials Physics) (Accessed April 22, 2024)
Created December 31, 1989, Updated October 12, 2021