Microwave-detected optical response of YBa2Cu3O7 - x thin films
Abstract
Microwave-detected optical response (MDOR) of YBa2Cu3O7-x and other oxide superconductor thin films is shown to yield information complementary to that provided by trasnport photoconductivity measurements. The MDOR technique yields a superposition of response from all illuminated portions of a sample, irrespective of the existence of a resistive macroscopic percolative current path. The response is found to be bolometric at temperatures for which resistance appears in transport measurements. At low temperatures MDOR results imply a nonbolometric response which in some respects is consistent with nonequilibrium quasiparticle concentration due to radiative pair breaking.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- May 1990
- DOI:
- 10.1063/1.344958
- Bibcode:
- 1990JAP....67.4212K
- Keywords:
-
- Copper Oxides;
- High Temperature Superconductors;
- Microwave Sounding;
- Mixed Oxides;
- Photoconductivity;
- Superconducting Films;
- Bolometers;
- Magnetic Flux;
- Temperature Dependence;
- Thin Films;
- Yttrium Oxides;
- Solid-State Physics