Oxygen isotope effect in YBa/sub 2/Cu/sub 3/O/sub 7/ prepared by burning YBa/sub 2/Cu/sub 3/ in /sup 16/O and /sup 18/O
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We prepared YBa/sub 2/Cu/sub 3/ powder by ball milling a 2:1 molar mixture of the intermetallics BaCu and CuY. We synthesized YBa/sub 2/Cu/sub 3/(/sup 16/O)/sub 7-//sub x/ and YBa/sub 2/Cu/sub 3/(/sup 18/O)/sub 7-//sub x/ by oxidizing the YBa/sub 2/Cu/sub 3/ powder in /sup 16/O and /sup 18/O. The /sup 16/O//sup 18/O ratios were determined by laser-ionization and sputtering-ionization mass spectroscopy. The YBa/sub 2/Cu/sub 3/(/sup 16/0)/sub 7-//sub x/ sample had 99.8 at. %/sup 16/O, and the YBa/sub 2/Cu/sub 3/(/sup 18/O)/sub 7-//sub x/ sample had 96.5 at. %/sup 18/O. Susceptibility measurements of the superconducting transition temperature (T/sub c/) = 91.7 K for /sup 16/O; half-point transition at 84 K show an isotope effect of 0.4 +- 0.1 K.
- Research Organization:
- Center for Materials Science and P-10, Los Alamos National Laboratory, Mail Stop K-765, Los Alamos, New Mexico 87545
- OSTI ID:
- 6151385
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:10; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Conference
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Sat Dec 31 23:00:00 EST 1988
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Observation of an oxygen isotope effect in YBa/sub 2/Cu/sub 3/O/sub 7/
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Mon Sep 14 00:00:00 EDT 1987
· Phys. Rev. Lett.; (United States)
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The oxygen potentials corresponding to the YBa sub 2 Cu sub 3 O sub 6+x phase in the Y-Ba-Cu-O system
Journal Article
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Wed May 01 00:00:00 EDT 1991
· Journal of Solid State Chemistry; (United States)
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OSTI ID:7293831
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
BARIUM OXIDES
BCS THEORY
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
INTERMETALLIC COMPOUNDS
IONIZATION
ISOTOPE EFFECTS
LASER RADIATION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MASS SPECTROSCOPY
NONMETALS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
RADIATIONS
SPECTROSCOPY
SPUTTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
BARIUM OXIDES
BCS THEORY
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
INTERMETALLIC COMPOUNDS
IONIZATION
ISOTOPE EFFECTS
LASER RADIATION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MASS SPECTROSCOPY
NONMETALS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
RADIATIONS
SPECTROSCOPY
SPUTTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES