Preparation of PrBa sub 2 Cu sub 3 O sub y and PrBa sub 2 Cu sub 3 O sub y /YBa sub 2 Cu sub 3 O sub y epitaxial films using molecular beam epitaxy

Journal Article · Mon Jan 21 04:00:00 EST 1991 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.104667· OSTI ID:6227588

Obara, H; Kosaka, S; Kimura, Y ^[1]

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1. Electrotechnical Laboratory, Umezono 1-1-4, Tsukuba-shi, Ibaraki 305, Japan (JP)

Using molecular beam epitaxy, we have successfully prepared PrBa{sub 2}Cu{sub 3}O{sub {ital y}} (PBCO) films and PBCO/YBa{sub 2}Cu{sub 3}O{sub {ital y}} (YBCO) layered structures. Epitaxial growth of these films was confirmed by {ital in} {ital situ} reflection high-energy electron diffraction. The temperature dependence of resistivity in the PBCO film showed semiconducting behavior. The lattice parameters of Pr{sub 1+{ital x}}Ba{sub 2{minus}{ital x}}Cu{sub 3}O{sub {ital y}} films decreased when {ital x} increased and almost coincided with that of well-oxidized YBa{sub 2}Cu{sub 3}O{sub {ital y}} films ({ital y}{similar to}7) when {ital x}{similar to}0.3. These experimental results indicate that YBCO/PBCO/YBCO multilayers are suitable for artificial layered structures of oxide superconductors, i.e., electronic devices.

• OSTI ID: 6227588
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 58:3; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
EPITAXY
FILMS
HIGH-TC SUPERCONDUCTORS
MOLECULAR BEAM EPITAXY
OXIDES
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES