Published August 1, 1995
| Version v1
Journal article
Superconductivity and structural transition in Mo-stabilised R1-xCaxSr2Cu3Oy compounds (R = Pr, Nd, and Y)
- 1. Sydney Univ., NSW (Australia). Sch. of Mater. Sci. and Eng.
- 2. Wollongong Univ. (Australia). Dept. of Mater. Sci. and Eng.
Description
Sr-based 123 compounds R1-xCaxSr2Cu2.7Mo0.3Oy with R = Pr, Nd, and Y are successfully stabilised by partial substitution of Mo for Cu. A tetragonal-orthorhomic-tetragonal transition is observed for R = Y and Nd, which is induced by different oxygen content in the samples. Tc of the samples is sensitive to the oxygen content other than the structure. For Pr-contained samples the resistivity decreases systematically with increasing the Ca dopant and oxygen content. The results show that the hybridisation of the conduction electrons with the 4f band of Pr in Sr-based 123 compounds is weaker than that in Ba-based 123 compounds. (orig.)
Additional details
Publishing Information
- Journal Title
- Physica Status Solidi. B, Basic Research
- Journal Volume
- 190
- Journal Issue
- 2
- Journal Page Range
- p. 523-530.
- ISSN
- 0370-1972
- CODEN
- PSSBBD
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 29007139
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- CALCIUM COMPOUNDS; CRYSTAL STRUCTURE; CUPRATES; ELECTRIC CONDUCTIVITY; HIGH-TC SUPERCONDUCTORS; LATTICE PARAMETERS; MAGNETIC SUSCEPTIBILITY; MATERIAL SUBSTITUTION; MOLYBDENUM COMPOUNDS; NEODYMIUM COMPOUNDS; PRASEODYMIUM COMPOUNDS; STOICHIOMETRY; STRONTIUM COMPOUNDS; TRANSITION TEMPERATURE; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; ELECTRICAL PROPERTIES; MAGNETIC PROPERTIES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 17 refs.