Characteristic of the acoustic properties of Bi(1.4)Pb(0.6)Ca2Sr2Cu3O(y) ceramic
Abstract
In a lead-stabilized 2-2-2-3 bismuth ceramic, anomalies of sound velocity and attenuation as well as specific heat anomalies have been observed at about 60 K which are interpreted as a phase transition of the second kind. The sensitivity of the anomalies to a frozen magnetic flux indicates the magnetic nature of the transition. Similar singularities are also observed at this temperature in 1-2-3 superconductors.
- Publication:
-
Fizika Nizkikh Temperatur
- Pub Date:
- June 1991
- Bibcode:
- 1991FizNT..17..755G
- Keywords:
-
- Acoustic Properties;
- Ceramics;
- Copper Oxides;
- High Temperature Superconductors;
- Mixed Oxides;
- Specific Heat;
- Acoustic Velocity;
- Bismuth Oxides;
- Calcium Oxides;
- Lead Oxides;
- Phase Transformations;
- Solid-State Physics