Absorption of longitudinal ultrasound in the high-temperature superconductor Y(1.2)Ba(0.8)CuO(4-y)
Abstract
The absorption of longitudinal ultrasonic modes in the high-temperature metal oxide superconductor Y(1.2)Ba(0.8)CuO(4-y) (Tc = 91 K) is investigated experimentally. It is found that, as temperature is decreased, sound absorption decreases abruptly at about 150 K, reaches a minimum at 130-140 K, and then increases again. Another minimum is observed below the critical temperature.
- Publication:
-
Fizika Nizkikh Temperatur
- Pub Date:
- February 1988
- Bibcode:
- 1988FizNT..14..202I
- Keywords:
-
- Acoustic Attenuation;
- High Temperature Superconductors;
- Mixed Oxides;
- Ultrasonics;
- Barium Oxides;
- Copper Oxides;
- Temperature Dependence;
- Yttrium Oxides;
- Solid-State Physics