New family of superconductors containing carbonate group
Conference
·
· Journal of Superconductivity; (United States)
OSTI ID:7020718
- Aoyama-Gakuin Univ., Tokyo (Japan)
Three new oxycarbonate superconductors recently obtained in our laboratory are described. (1) Sr[sub 2]CuO[sub 2](CO[sub 3])[sub 1[minus]x](BO[sub 3])[sub x] (Tc = 35 K) was was synthesized under ambient pressure, providing a new method for carrier doping on the layered copper oxycarbonate system. (2) Ca[sub n](Ca, Sr)[sub 2]Cu[sub n+1](CO[sub 3])O[sub y] (n = 1, 2, 3) was synthesized under high pressure. Superconductivity was achieved by substituting (BO[sub 3])[sup 3[minus]] for a part of (CO[sub 3])[sup 2[minus]]. (3) A new Hg system HgBa[sub 2]Sr[sub 2]Cu[sub 2](CO[sub 3])O[sub 6+[delta]] was synthesized, Tc obtained from the magnetic susceptibility is about 66 K. 18 refs., 9 figs.
- OSTI ID:
- 7020718
- Report Number(s):
- CONF-930710--
- Journal Information:
- Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 7:1; ISSN JOUSEH; ISSN 0896-1107
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:7018065
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Sun Jun 01 00:00:00 EDT 1997
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OSTI ID:482073
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·
OSTI ID:7207492
Related Subjects
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
COPPER CARBONATES
COPPER COMPOUNDS
CRYSTAL DOPING
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUPRATES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATERIALS
MERCURY COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
COPPER CARBONATES
COPPER COMPOUNDS
CRYSTAL DOPING
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUPRATES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATERIALS
MERCURY COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS