High transition temperature superconductor LaBa/sub 2/Cu/sub 3/O/sub 7/. sqrt. /sub y/ with zero resistance at 92 K
Journal Article
·
· Appl. Phys. Lett.; (United States)
Samples of LaBa/sub 2/ Cu/sub 3/ O/sub 7/..sqrt../sub y/ have been synthesized, which show a superconducting transition above 90 K. One of the samples shows a superconducting transition with an onset at 93 K and a zero resistivity at 92 K. These temperatures are the highest among those reported so far on this system and even higher than those in YBa/sub 2/ Cu/sub 3/ O/sub 7/..sqrt../sub y/. The magnetic susceptibility measurement also shows that it has a superconducting transition with onset at around 93 K. To synthesize such good LaBa/sub 2/ Cu/sub 3/ O/sub 7/..sqrt../sub y/ requires two important procedures. First is sintering above 950 /sup 0/C in N/sub 2/ gas atmosphere and the second is annealing at 300 /sup 0/C in dried O/sub 2/ gas atmosphere.
- Research Organization:
- Department of Applied Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
- OSTI ID:
- 5255494
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:23; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Orthorhombic-tetragonal phase transition in LaBa/sub 2/Cu/sub 3/O/sub 7-//sub y/ with zero resistance at 92 K
Synthesis of LaBa/sub 2/Cu/sub 3/O/sub 7-//sub y/ through tetragonal to orthorhombic phase transition at high oxygen deficiency
Superconducting properties of LaBa/sub 2/Cu/sub 3/O/sub x/ and YBa/sub 2/Cu/sub 3/O/sub y/
Journal Article
·
Sat Oct 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6824378
Synthesis of LaBa/sub 2/Cu/sub 3/O/sub 7-//sub y/ through tetragonal to orthorhombic phase transition at high oxygen deficiency
Journal Article
·
Sun Nov 27 23:00:00 EST 1988
· Appl. Phys. Lett.; (United States)
·
OSTI ID:6749586
Superconducting properties of LaBa/sub 2/Cu/sub 3/O/sub x/ and YBa/sub 2/Cu/sub 3/O/sub y/
Conference
·
Thu Mar 31 23:00:00 EST 1988
·
OSTI ID:7201706
Related Subjects
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
FABRICATION
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SINTERING
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
FABRICATION
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SINTERING
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE