Superconductor-to-insulator transition in the Bi/sub 2/Sr/sub 3-x/Y/sub x/Cu/sub 2/O/sub 8+y/
Journal Article
·
· J. Solid State Chem.; (United States)
The compositions Bi/sub 2/Sr/sub 3-x/Y/sub x/Cu/sub 2/O/sub 8/ have been prepared with the structure of superconducting Bi/sub 2/Sr/sub 3-x/Ca/sub x/Cu/sub 2/O/sub 8/. The range of x in B/sub 2/Sr/sub 3-x/Y/sub x/Cu/sub 2/O/sub 8/ is roughly 0.2 to 1.0 and chemical analysis shows that the Cu/sup III/ concentration increases with decreasing x. The compositions are superconducting (T/sub c/ /approximately/ 65-72 K) for x = /approximately/ 0.2 to 0.4. Insulating behavior is observed in the region from x = 0.5 to 1.0. This insulating region would not be expected if the Bi 6p band overlapped the Fermi level, as indicated by recent band structure calculations for Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/.
- Research Organization:
- E.I. du Pont de Nemours and Company, Wilmington, DE (USA)
- OSTI ID:
- 6192777
- Journal Information:
- J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 77:1; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Chemical modification of the superconducting oxides YBa[sub 2]Cu[sub 3]O[sub 7-x] and Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+x]
Solidification of Bi[sub 2]Sr[sub 2]Ca[sub 1]Cu[sub 2]O[sub [ital y]] and Bi[sub 2]Sr[sub 1. 75]Ca[sub 0. 25]CuO[sub [ital y]]
High-temperature resistance behavior of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+//sub y/ and YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/ superconductors
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1993
·
OSTI ID:6917137
Solidification of Bi[sub 2]Sr[sub 2]Ca[sub 1]Cu[sub 2]O[sub [ital y]] and Bi[sub 2]Sr[sub 1. 75]Ca[sub 0. 25]CuO[sub [ital y]]
Journal Article
·
Wed Sep 01 00:00:00 EDT 1993
· Journal of Materials Research; (United States)
·
OSTI ID:6097873
High-temperature resistance behavior of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+//sub y/ and YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/ superconductors
Journal Article
·
Sun Nov 20 23:00:00 EST 1988
· Appl. Phys. Lett.; (United States)
·
OSTI ID:7015956
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES