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Superconductivity in YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices

Conference · · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5946090
; ;  [1]; ; ; ; ; ; ;  [2]; ;  [3]
  1. Dept. of Physics, Rutgers Univ., Piscataway, NJ (US)
  2. Los Alamos National Lab., NM (United States)
  3. Bellcore, Red Bank, NJ (US)
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This paper reports on high quality YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} superlattices with desired thicknesses of each component fabricated by laser deposition. Superconductivity is studied by varying both YBa{sub 2}Cu{sub 3}O{sub 7} and PrBa{sub 2}Cu{sub 3}O{sub 7} layer thicknesses. The results indicated that an isolated single unit cell YBa{sub 2}Cu{sub 3}O{sub 7} layer (nominal thickness of 12 {Angstrom}) is superconducting. The increase of T{sub c} from the lower value of a single unit cell layer to 90 K in thick films and the enhancement of T{sub c} for a given thickness of YBa{sub 2}Cu{sub 3}O{sub 7} when the PrBa{sub 2}Cu{sub 3}O{sub 7} layers decreased to less than {approximately}30 {Angstrom} could be attributed to the interlayer coupling effect. Superconducting transitions of superlattices in applied magnetic fields were studied.

OSTI ID:
5946090
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

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Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COUPLING
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
FILMS
LAYERS
MAGNETIC FIELDS
MAGNETORESISTANCE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERLATTICES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES