Universal rare earth - size dependence of Tc in Re-metal stabilized Sr-based 1-2-3 cuprates
Creators
- 1. Department of Materials Science and Engineering, Muroran Institute of Technology, Muroran (Japan)
Description
Single phase Tm1-xRExSr2Cu2.85Re0.15Oz hybrid compounds, where RE = Pr, Nd, Sm, Eu, Gd, Tb and Dy, have been characterized for their structural and superconducting properties. All the compounds crystallize in tetragonal (P4/mmm) structure. However, a small degree of orthorhombic distortion is found in all the superconducting samples. The Tc of hybrid compound [where the weighted average rare earth ionic radius (i.r.) is close to that of Ho (i.r.≅1.015 A, Tc = 41K) and Y (i.r. ≅ 1.019 A, Tc = 32K)) is relatively higher as compared to the Tc value of individual members. The Tc value of 41K for Ho in the hybrid compounds is nearly equal to the Tc value of (Y/Ho/Er) Sr2Cu2.85Re0.15Oz, which confirms the strong RE ionic size dependence of Tc. Magnetic moment of the RE ion is found to have no effect on structure and Tc. (author)
Additional details
Publishing Information
- Publisher
- New Age International
- Imprint Place
- New Delhi (India)
- ISBN
- 81-224-1125-8
- Imprint Title
- Advances in superconductivity: new materials, critical currents and devices
- Imprint Pagination
- 419 p.
- Journal Page Range
- p. 76-79
Conference
- Title
- international symposium on advances in superconductivity: new materials, critical currents and devices
- Acronym
- ASMCCD '96
- Dates
- 17-20 Sep 1996
- Place
- Mumbai (India)
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 29056469
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COPPER OXIDES; CRYSTAL DEFECTS; DYSPROSIUM OXIDES; EUROPIUM OXIDES; GADOLINIUM OXIDES; MAGNETIC MOMENTS; NEODYMIUM OXIDES; ORTHORHOMBIC LATTICES; PRASEODYMIUM OXIDES; RHENIUM OXIDES; SAMARIUM OXIDES; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TERBIUM OXIDES; THULIUM OXIDES; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DYSPROSIUM COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; EUROPIUM COMPOUNDS; GADOLINIUM COMPOUNDS; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; RHENIUM COMPOUNDS; SAMARIUM COMPOUNDS; STRONTIUM COMPOUNDS; TERBIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; THULIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 6 refs., 2 figs., 1 tab.