OPTICAL ANISOTROPY AND ELECTRON PHONON COUPLING IN BI2SR2CACU2O8 SINGLE-CRYSTALS
| Autor: | Victor M. Burlakov, P. Müller, A. Gaymann, A. Zibold, N. Nücker, M. Dürrler, Hans Peter Geserich |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Materials science
Condensed matter physics Plane (geometry) Phonon Energy Engineering and Power Technology Conductivity Condensed Matter Physics Optical conductivity Spectral line Electronic Optical and Magnetic Materials Condensed Matter::Superconductivity Tensor Electrical and Electronic Engineering Free carrier absorption Anisotropy |
| Zdroj: | PHYSICA C. 193(1-2) |
| ISSN: | 0921-4534 |
| Popis: | We have determined the polarized reflectance spectra R‖c, R‖c and R‖c of the high temperature superconductor Bi2Sr2CaCu2O8 in the normal state. By fitting a Lorentz-Drude model or by performing a Kramers-Kronig analysis, respectively, the spectral distribution of the tensor components of the real and the imaginary part of the dielectric function were obtained. The optical results reveal a low electrical anisotropy within the (001) plane and a very high anisotropy between the in-plane conductivity and the conductivity perpendicular to this plane. The spectrum R‖c gives evidence for the interaction between infrared-active phonons and the low-energy part of interband transitions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|