Electron-energy-loss spectrum of the cuprate superconductors

1 September 1994

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 50 (9) , 6394-6401
https://doi.org/10.1103/physrevb.50.6394

Abstract

We present a theoretical description of the near-specular (dipole) electron-energy-loss spectrum of a superlattice constructed from anisotropic dielectric layers, as a model of the superconducting copper-oxide-based materials. The theory is applied to a description of recent data taken on the Bi 2:2:1:2 compound. We find that parameters deduced from the electron loss spectrum are compatible with infrared reflectivity data. Manifestations of the superconducting energy gap are not evident in the new data.

Keywords

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