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
- 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), Vol. 58:3; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BARIUM OXIDES
MOLECULAR BEAM EPITAXY
COPPER OXIDES
PRASEODYMIUM OXIDES
YTTRIUM OXIDES
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTING FILMS
TEMPERATURE DEPENDENCE
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
EPITAXY
FILMS
OXIDES
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties