Acoustoelectric effect in YBa2Cu3O(7-x) superconductor films
Abstract
The acoustoelectric effect in the YZ-LiNbO3-YBa2Cu3O(7-x) film structure is investigated. At 300 K, the sign of the acousto-emf is positive, i.e., it corresponds to the hole conductivity. At temperatures less than or approximately equal to Tc = 98 K, the acousto-emf sharply drops to zero (95 K), changes its sign, and increases in absolute value to a maximum at 90 K (R = 0) with a subsequent decrease to zero at 78-81 K.
- Publication:
-
Pisma v Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki
- Pub Date:
- November 1990
- Bibcode:
- 1990PZETF..52.1138I
- Keywords:
-
- Barium Oxides;
- Electroacoustics;
- High Temperature Superconductors;
- Superconducting Films;
- Yttrium Oxides;
- Copper Oxides;
- Lithium Oxides;
- Niobium Oxides;
- Temperature Dependence;
- Solid-State Physics