Island growth and surface topography of epitaxial Y-Ba-Cu-O thin films on MgO

Journal Article · Mon Oct 21 00:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106066· OSTI ID:5237488

Krebs, H U; Krauns, C ^[1]; Yang, X; Geyer, U ^[2]

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1. Institut fuer Metallphysik, Hospitalstrasse 3-7, Universitaet Goettingen, 3400 Goettingen (Germany)
2. 1. Physikalisches Institut, Bunsenstrasse 9, Universitaet Goettingen, 3400 Goettingen (Germany)

High-quality epitaxial Y{sub 1}B{sub 2}Cu{sub 3}O{sub {ital x}} thin films ({ital T}{sub {ital c},{ital o}} {ge} ({ital R}18) 90 K, {ital j}{sub {ital c}} (77 K){ge} (R18)3 {times}10{sup 6}A/cm{sup 2}) were {ital in} {ital situ} grown on MgO by KrF excimer laser ablation. The combination of {ital in} {ital situ} resistance measurements, x-ray diffraction experiments, {ital T}{sub {ital c}} measurements, scanning electron microscopy and scanning tunneling microscopy gives clear indications for an island growth on these substrates and shows growth steps and spirals at the film surface.

• OSTI ID: 5237488
• Journal Information: Applied Physics Letters; (United States), Vol. 59:17; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
MICROSTRUCTURE
COPPER OXIDES
SUPERCONDUCTING FILMS
YTTRIUM OXIDES
ABLATION
HIGH-TC SUPERCONDUCTORS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTAL STRUCTURE
DIFFRACTION
FILMS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties