Diffusion of oxygen in superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ oxide upon annealing in helium and oxygen ambients
Journal Article
·
· Appl. Phys. Lett.; (United States)
Superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ oxide specimens (T/sub c/approx.91 K) formed by sintering were annealed in He gas ambient at constant temperatures ranging from 300 to 440 /sup 0/C. Outdiffusion of oxygen during the annealing procedure was monitored by in situ electrical resistivity measurement. Below 350 /sup 0/C, no resistivity changes were observed with time. From 370 to 440 /sup 0/C, resistivity increased linearly with annealing time except the very initial period. Indiffusion of oxygen monitored by switching He to O/sub 2/ (or air) during the annealing occurred extremely rapidly as indicated by a precipitous drop of resistivity. Assuming that the outdiffusion of oxygen is interfacial-reaction limited, an activation energy of 1.7 eV was measured. The effects of oxygen diffusion on resistivity indicate that oxygen atoms mediate majority carriers in the oxide.
- Research Organization:
- IBM T.J. Watson Research Center, Yorktown Heights, New York 10598
- OSTI ID:
- 5574014
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:25; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermal recovery of oxygen-deficient superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ oxides in ambient oxygen
Thermogravimetric study of the recovery of oxygen-deficient superconducting YBa sub 2 Cu sub 3 O sub 7 minus. delta. oxides in ambient oxygen
Oxygen diffusion in superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ oxides in ambient helium and oxygen
Journal Article
·
Thu Sep 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6790696
Thermogravimetric study of the recovery of oxygen-deficient superconducting YBa sub 2 Cu sub 3 O sub 7 minus. delta. oxides in ambient oxygen
Journal Article
·
Mon Sep 25 00:00:00 EDT 1989
· Applied Physics Letters; (USA)
·
OSTI ID:5422957
Oxygen diffusion in superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ oxides in ambient helium and oxygen
Journal Article
·
Fri Jul 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:7004852
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
ATOM TRANSPORT
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
FABRICATION
HEAT TREATMENTS
INFORMATION
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATION TRANSPORT
SINTERING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
ATOM TRANSPORT
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
FABRICATION
HEAT TREATMENTS
INFORMATION
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATION TRANSPORT
SINTERING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES