Preparation of buffer layers on sapphire for high T sub c superconducting thin films

Journal Article · Tue Aug 20 04:00:00 EDT 1991 · Modern Physics Letters B; (Singapore)

DOI:https://doi.org/10.1142/S0217984991001544· OSTI ID:5130515

Wu, X D; Muenchausen, R E ^[1]

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1. Exploratory Research and Development Center, Los Alamos National Lab., Los Alamos, NM (US)

Sapphire is a preferred substrate for high frequency applications where small dielectric constants and low loss tangents are required. It is also much cheaper than other oxide substrates such as SrTiO{sub 3}, LaAlO{sub 3}, NdGaO{sub 3}, MgO, and yttria-stabilized zirconia (YSZ) for high T{sub c} superconducting thin films. Unfortunately, sapphire is not chemically compatible with the high T{sub c} superconductors at the processing temperature required to obtain good superconducting properties. This paper reports that as a result, an appropriate buffer layer on sapphire is required.

• OSTI ID: 5130515
• Journal Information: Modern Physics Letters B; (Singapore), Journal Name: Modern Physics Letters B; (Singapore) Vol. 5:19; ISSN 0217-9849; ISSN MPLBE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
BUFFERS
CORUNDUM
COST
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FILMS
HIGH-TC SUPERCONDUCTORS
LAYERS
MINERALS
OXIDE MINERALS
PERMITTIVITY
PHYSICAL PROPERTIES
SAPPHIRE
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SYNTHESIS