Superconductivity in nonsymmetric epitaxial YBa sub 2 Cu sub 3 O sub 7 minus x /PrBa sub 2 Cu sub 3 O sub 7 minus x superlattices: The superconducting behavior of Cu-O bilayers
Journal Article
·
· Physical Review Letters; (USA)
- Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN (USA)
We have fabricated epitaxial, nonsymmetric {ital M}{times}{ital N} superlattices in which YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (YBCO) layers either {ital M}=1, 2, 3, 4, or 8 {ital c}-axis unit cells thick are separated by insulating PrBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (PrBCO) layers {ital N} unit cells thick ({ital N}=1 to {similar to}16). The zero-resistance transition temperature, {ital T}{sub {ital c}0}, initially decreases rapidly with increasing PrBCO thickness but saturates at {ital T}{sub {ital c}0}{similar to}19 K or {ital T}{sub {ital c}0}{similar to}54 K for 1- and 2-cell-thick YBCO layers, respectively. We conclude that although intercell coupling may enhance {ital T}{sub {ital c}0}, it is necessary for superconductivity of single-cell-thick YBCO layers in PrBCO matrix.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6381453
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:9; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Superconductivity in nonsymmetric epitaxial YBa sub 2 Cu sub 3 O sub 7-. delta. -PrBa sub 2 Cu sub 3 O sub 7-. delta. superlattices grown by pulsed laser ablation
Thermally activated flux motion in artificially grown YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices
Normal-state transport properties of YBa{sub 2}Cu{sub 3}O{sub 7{minus}y}/PrBa{sub 2}Cu{sub 3}O{sub 7{minus}y} superlattices
Conference
·
Sat Mar 31 23:00:00 EST 1990
·
OSTI ID:6947700
Thermally activated flux motion in artificially grown YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices
Journal Article
·
Mon Sep 02 00:00:00 EDT 1991
· Physical Review Letters; (United States)
·
OSTI ID:5172191
Normal-state transport properties of YBa{sub 2}Cu{sub 3}O{sub 7{minus}y}/PrBa{sub 2}Cu{sub 3}O{sub 7{minus}y} superlattices
Journal Article
·
Mon Sep 01 00:00:00 EDT 1997
· Physical Review, B: Condensed Matter
·
OSTI ID:542250
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
EXPERIMENTAL DATA
FABRICATION
FILMS
HIGH-TC SUPERCONDUCTORS
INFORMATION
LOW TEMPERATURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SCATTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SUPERLATTICES
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
EXPERIMENTAL DATA
FABRICATION
FILMS
HIGH-TC SUPERCONDUCTORS
INFORMATION
LOW TEMPERATURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SCATTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SUPERLATTICES
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES