Published June 1, 1987 | Version v1
Journal article Metadata-only

Elasticity studies of La/sub 2-//sub x/Sr/sub x/CuO4

Creators

  • 1. Department of Physics, University of California, Berkeley, California 94720

Description

We report measurements of Young's modulus Y and internal friction δ of the high-T/sub c/ superconductor La/sub 2-//sub x/Sr/sub x/CuO4. For x = 0.15, anomalies in Y and δ at T/sub c/ = 40 K are preceded by a dramatic decrease in Y, indicative of a soft phonon mode beginning near 200 K. For x = 0.30, the softening is absent. The magnetic field dependence of Y and δ is investigated, and predictions are made for ΔC/sub p/ and partialH/sub c/2/partialT

Additional details

Publishing Information

Journal Title
Phys. Rev., B: Condens. Matter
Journal Volume
35
Journal Issue
16
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
8785-8787
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
18079072
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
COPPER OXIDES; INTERNAL FRICTION; LANTHANUM OXIDES; LOW TEMPERATURE; PHONONS; STRONTIUM OXIDES; SUPERCONDUCTORS; TRANSITION TEMPERATURE; ULTRALOW TEMPERATURE; YOUNG MODULUS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; FRICTION; LANTHANUM COMPOUNDS; MECHANICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS