The dielectric functions of high-Tccuprates obtained from the optical and electron energy loss measurements
- 1 January 1991
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 4 (1S) , S397-S399
- https://doi.org/10.1088/0953-2048/4/1s/118
Abstract
Various dielectric functions of high-Tc cuprates, (La,Sr)2CuO4 and Bi2Sr2CaCu2O8+ delta , and their related compounds were obtained by two kinds of measurements-optical reflectivity and electron-energy-loss spectroscopy. Comparative study of the obtained spectra has revealed that the excitations associated with CuO2 plane in high-Tc cuprates are concentrated in lower-energy region and are well isolated from the excitations in the insulating blocks.Keywords
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