Oxygen vacancies, zinc impurities, and the intrinsic microwave loss of YBa[sub 2]Cu[sub 3]O[sub 7-[delta]]
Journal Article
·
· Journal of Superconductivity; (United States)
- Univ. of British Columbia, Vancouver, British Columbia (Canada)
The surface resistance of YBa[sub 2](Cu[sub 1[minus]x]Zn[sub x])[sub 3]O[sub 7-[delta]] has been measured in single crystals with oxygen vacancies ranging from [delta] = 0.03 to 0.15 and for Zn impurity concentrations of x = 0, 0.0015 and 0.0031. Oxygen vacancies in the CuO chains have little influence on the microwave loss until T[sub c] is reduced substantially. However, Zn impurities in the CuO[sub 2] plane sites drastically decrease the surface resistance, showing that the CuO[sub 2] plane conductivity dominates any CuO chain contribution to the microwave properties of YBa[sub 2]Cu[sub 3]O[sub 7-[delta]]. The reduced microwave loss in the Zn-doped samples mimics the loss observed in state-of-the-art films and indicates that defects must be present in order to achieve the low microwave loss observed in some films. This sensitivity to low levels of defects is a consequence of the rapid increase in the scattering time in YBa[sub 2]Cu[sub 3]O[sub 7-[delta]] below T[sub c]. 29 refs., 5 figs.
- OSTI ID:
- 5611108
- Journal Information:
- Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 6:4; ISSN JOUSEH; ISSN 0896-1107
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of oxygen defects on transport properties and {ital T}{sub {ital c}} of YBa{sub 2}Cu{sub 3}O{sub 6+{ital x}}: Displacement energy for plane and chain oxygen and implications for irradiation-induced resistivity and {ital T}{sub {ital c}} suppression
Physical and chemical properties of (Y{sub 1-x}Ca{sub x})(Ba{sub 2-x}La{sub x})Cu{sub 3}O{sub 7-{delta}}
Raman-scattering study of high- Tc films of the ordered defect structure YBa sub 2 Cu sub 4 O sub 8 minus. delta
Journal Article
·
Wed May 01 00:00:00 EDT 1996
· Physical Review, B: Condensed Matter
·
OSTI ID:283913
Physical and chemical properties of (Y{sub 1-x}Ca{sub x})(Ba{sub 2-x}La{sub x})Cu{sub 3}O{sub 7-{delta}}
Journal Article
·
Sun Oct 01 00:00:00 EDT 1995
· Journal of Superconductivity
·
OSTI ID:207202
Raman-scattering study of high- Tc films of the ordered defect structure YBa sub 2 Cu sub 4 O sub 8 minus. delta
Journal Article
·
Fri Nov 30 23:00:00 EST 1990
· Physical Review, B: Condensed Matter; (USA)
·
OSTI ID:5942381
Related Subjects
36 MATERIALS SCIENCE
360607* -- Other Materials-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
CUPRATES
ELECTROMAGNETIC RADIATION
HIGH-TC SUPERCONDUCTORS
IMPURITIES
MICROWAVE RADIATION
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
POINT DEFECTS
RADIATIONS
SUPERCONDUCTORS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZINC COMPOUNDS
360607* -- Other Materials-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
CUPRATES
ELECTROMAGNETIC RADIATION
HIGH-TC SUPERCONDUCTORS
IMPURITIES
MICROWAVE RADIATION
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
POINT DEFECTS
RADIATIONS
SUPERCONDUCTORS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZINC COMPOUNDS