Hall-effect studies in YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices

Journal Article · Wed May 01 00:00:00 EDT 1991 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.43.11484· OSTI ID:5561583

Affronte, M ^[1]; Triscone, J; Brunner, O; Antognazza, L; Mieville, L; Decroux, M; Fischer, O ^[2]

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1. Departement de Physique, Ecole Polytechnique Federale, I.M.O., 1015 Lausanne, Switzerland (CH)
2. Departement de Physique de la Matiere Condensee, Universite de Geneve, 24 quai Ernest Ansermet, CH-1211 Geneve 4, Switzerland (CH)

We measured the resistivity and the Hall coefficient {ital R}{sub {ital H}} in a series of YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} multilayers. We found no systematic change of the transport properties with decreasing layer thicknesses down to one unit cell. The resistivity and {ital R}{sub {ital H}} evaluated for the YBa{sub 2}Cu{sub 3}O{sub 7} layers are slightly higher than in bulk material, suggesting a small decrease of the carrier density in the multilayers. However, we observe no change in the Hall number 1/{ital eR}{sub {ital H}} when the thickness of the YBa{sub 1}Cu{sub 3}O{sub 7} layers decreases, so that the lowering of {ital T}{sub {ital c}} observed in the superlattices cannot simply be related to a change in the carrier density. Furthermore, we find that the temperature dependence of {ital R}{sub {ital H}} is very similar to that of bulk materials.

• OSTI ID: 5561583
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:13; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HALL EFFECT
LAYERS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SUPERLATTICES
THERMODYNAMIC PROPERTIES
THICKNESS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES