Optical Study of High-Tc Superconducting Copper Oxides
- 1 January 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (S3-2) , 1007
- https://doi.org/10.7567/jjaps.26s3.1007
Abstract
The optical reflectivity spectra of the new high-Tc superconductors (La1-xAx)2CuO4 (A=Ba,Ca,Sr) and MBa2Cu3Oy (M=Y,Er) were investigated. In each spectrum a clear plasma edge was observed. However, the spectrum deviated obviouly from the Drude-type spectrum, indicating the existence of some excitation in the infrared region. The origin of this excitation and its relevance to the superconductivity were discussed.Keywords
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