LaAlO sub 3 -YBCO multilayers

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5877924

Lee, A E; Burch, J F; Simon, R W; Luine, J A; Hu, R; Schwarzbek, M ^[1]

---

1. TRW Space and Technology Group, Redondo Beach, CA (United States)

The authors have grown HTS bilayers (LaAlO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7}) and trilayers (YBa{sub 2}Cu{sub 3}O{sub 7}/LaAlO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7}) using off-axis rf sputtering from single stoichiometric targets. TEM examination shows that both the LaAlO{sub 3} and YBa{sub 2}Cu{sub 3}O{sub 7} films grow epitaxially upon the preceding layer. The interfaces between layers and at the LaAlO{sub 3} substrates are sharp and clean. This paper reports that deposition of the subsequent layers does not degrade the electrical properties of the bottom YBa{sub 2}Cu{sub 3}O{sub 7} layer; this observation extends to the surface resistance, and to the superconducting transition temperature of the bottom YBCO layer. The authors discuss the results of the electrical measurements of the multilayer structures made by the off- and on-axis LaAlO{sub 3} depositions.

• OSTI ID: 5877924
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPUTTERING
STOICHIOMETRY
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES