Published December 1, 1995
| Version v1
Journal article
Observation of variable-range hopping up to 900 K in the YLaxBa2-xCu3O7-δ system
Creators
- 1. Materials Science Research Center, Indian Institute of Technology, Madras 600 036 (India)
Description
Semiconducting phases in the system YLaxBa2-xCu3O7-δ (x=1.0--0.0) exhibit three-dimensional variable-range hopping conduction over a wide temperature (T) range (100--900 K). Thermopower (S) measurements support this observation. S increases with T for x=1.0 and 0.8 indicative of transport at the chemical potential Eμ. The decrease in S with T for x=0.4 and 0.3 is indicative of gap at Eμ. A schematic band picture is used to explain the observed behaviors
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 52
- Journal Issue
- 22
- Journal Page Range
- p. 16213-16216.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27040244
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRIC CONDUCTIVITY; ENERGY GAP; HIGH-TC SUPERCONDUCTORS; SEEBECK EFFECT; SEMICONDUCTOR MATERIALS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ELECTRICAL PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; SUPERCONDUCTORS