Published August 1, 1987
| Version v1
Journal article
Anomalies in the internal friction and sound velocity in the high-temperature superconductor La/sub 1.8/Sr/sub 0.2/CuO4
- 1. Centro Atomico Bariloche, Instituto Balseiro, 8400 Bariloche, Argentina
Description
The internal friction Q/sup -1/ and the Young's-modulus sound velocity v/sub E/ have been measured in La/sub 1.8/Sr/sub 0.2/CuO4 using the vibrating-reed technique. Measurements were performed at a frequency of 700 Hz at temperatures between 0.2 and 100 K. A drastic change of slope in the internal friction versus temperature curve is observed at T = 44 K just above the superconducting transition temperature T/sub c/ = 40 K. A plateau in Q/sup -1/ is observed between 44 and 5 K. The sound velocity shows a decrease with decreasing temperature between 100 and 20 K and remains almost constant between 2 and 0.2 K
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 36
- Journal Issue
- 4
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 2316-2318
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18089050
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- COPPER OXIDES; EXPERIMENTAL DATA; INTERNAL FRICTION; LANTHANUM OXIDES; LOW TEMPERATURE; SOUND WAVES; STRONTIUM OXIDES; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE; YOUNG MODULUS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DATA; FRICTION; INFORMATION; LANTHANUM COMPOUNDS; MECHANICAL PROPERTIES; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS