Study of the optical features of YBa2Cu3O7-x films by SEW spectroscopy
Abstract
The results of YBa2Cu3O7-x films on SrTiO3 investigation by far infrared surface electromagnetic waves (SEW) amplitude and phase spectroscopy at temperatures 80–350 K are presented. Strong SEW absorption at frequency 142 cm‑1 has been observed. The origin of the observed absorbtion is proposed to be concerned with slab- phonons in YBa2Cu3O7-x. The optical constants of the films have been obtained. Also has been determined, that only the imaginary part of the SEW refraction index changes when the film transits into superconducting state, while the real part remains unchanged.
- Publication:
-
International Journal of Infrared and Millimeter Waves
- Pub Date:
- November 1991
- DOI:
- Bibcode:
- 1991IJIMW..12.1233V
- Keywords:
-
- Copper Oxides;
- Electromagnetic Spectra;
- Electromagnetic Surface Waves;
- High Temperature Superconductors;
- Optical Properties;
- Superconducting Films;
- Barium Oxides;
- Far Infrared Radiation;
- Strontium Titanates;
- Yttrium Oxides;
- Solid-State Physics;
- Spectroscopy;
- Imaginary Part;
- Refraction;
- Electromagnetic Wave;
- Optical Feature