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Heteroepitaxial growth of strained multilayer superconducting thin films of Nd sub 1. 83 Ce sub 0. 17 CuO sub x /YBa sub 2 Cu sub 3 O sub 7 minus. delta

Journal Article · · Physical Review Letters; (USA)
; ; ; ; ;  [1]
  1. IBM Thomas J. Watson Research Center, Yorktown Heights, NY (USA)
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Heteroepitaxial growth of strained multilayer thin films of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}/Nd{sub 1.83}Ce{sub 0.17}CuO{sub {ital x}} by pulsed-laser deposition is reported. The coherency strain results in biaxial compression of the tetragonal Nd{sub 1.83}Ce{sub 0.17}CuO{sub {ital x}} layers, whereas the biaxial tension in the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} layers removes the orthorhombic distortion and makes the unit cell isotropic in the basal plane ({ital a}={ital b}). Depending on their oxygen content, either the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} or the Nd{sub 1.83}Ce{sub 0.17}CuO{sub {ital x}} layers are superconducting in these multilayers. The strain-induced structural modification has a significant influence on the superconducting transition temperature of the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} layers.
OSTI ID:
6522094
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:26; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
EPITAXY
EXPERIMENTAL DATA
FILMS
HETEROJUNCTIONS
HIGH-TC SUPERCONDUCTORS
INFORMATION
JUNCTIONS
LASER RADIATION
LAYERS
LOW TEMPERATURE
MEDIUM TEMPERATURE
MICROSCOPY
MODIFICATIONS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PULSES
RADIATIONS
RARE EARTH COMPOUNDS
SEMICONDUCTOR JUNCTIONS
STRAINS
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES