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 · Mon Jun 25 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.3191· OSTI ID:6522094

Gupta, A; Gross, R; Olsson, E; Segmueller, A; Koren, G; Tsuei, C C ^[1]

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1. IBM Thomas J. Watson Research Center, Yorktown Heights, NY (USA)

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), Vol. 64:26; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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