Plasma Spectra of New Superconductors (La1-xAx)2CuO4
- 1 April 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (4A) , L432
- https://doi.org/10.1143/jjap.26.l432
Abstract
The optical reflectivity spectra of new superconductors (La1-x M x )2CuO4 (M=Ba, Ca, Sr) were investigated. In the spectra for the metallic samples, a plasma edge was observed at almost the same position for all compositions x and for all substituents. Based on the two-dimensional tight-binding model, the conduction band width was estimated to be about 1 eV from the value of the observed plasma energy.Keywords
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