Superconducting YBaCuO thin films on GaAs/AlGaAs

Journal Article · Mon May 07 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103041· OSTI ID:6815875

Rao, M R; Tarsa, E J; Samoska, L A; English, J H; Gossard, A C; Kroemer, H; Petroff, P M; Hu, E L ^[1]

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1. Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106 (USA) Materials Department, University of California, Santa Barbara, California 93106 (USA)

Superconducting YBaCuO (1-2-3) thin films have been deposited on GaAs by laser ablation, in the presence of an oxygen plasma, at a substrate temperature of 600 {degree}C. The (100) GaAs had a thin (100 A) Al{sub 0.3}Ga{sub 0.7}As cap layer, in order to prevent decomposition of the GaAs. The as-deposited YBaCuO film had a {ital T}{sub {ital c}} (onset) of 80 K and a {ital T}{sub {ital c}} (zero) of 20 K. Transmission electron microscopy studies showed the presence of voids in the GaAs, {similar to}1000 A in length, and extending 500 A into the GaAs.

• OSTI ID: 6815875
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:19; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EVAPORATION
FILMS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PNICTIDES
SORPTIVE PROPERTIES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VACUUM EVAPORATION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES