Optical investigation of electronic excitations in high-temperature superconductors YBa#72Cu#73O#77#7d#I#8d#3#J and Bi#72Sr#72CaCu#72O#78#7s#I#8D#3#J

Raman scattering from superconducting gap excitations in the compounds is compared. In the normal state, both materials exhibit strong electronic interband scattering. At low temp., a redistribution of electronic scattering occurs, indicative of the formation of a superconducting gap. The two symmet...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1989-01, Vol.25 (11), p.2394-2398
Main Authors: Slakey, F, Klein, M V, Cooper, S
Format: Article
Language:English
Online Access:Get full text
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Summary:Raman scattering from superconducting gap excitations in the compounds is compared. In the normal state, both materials exhibit strong electronic interband scattering. At low temp., a redistribution of electronic scattering occurs, indicative of the formation of a superconducting gap. The two symmetries exhibit distinct redistribution, however, denoting strong anisotropy. At A#2T#Ic#1#J, both compounds exhibit residual low-energy scattering, suggesting the coexistence of normal electrons and superconducting quasi-particles.
ISSN:0018-9197