Critical current density enhancement in YBa sub 2 Cu sub 3 O sub 6. 8 films on buffered metallic substrates

Journal Article · Mon Mar 18 00:00:00 EST 1991 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.104364· OSTI ID:6258995

Narumi, E; Song, L W; Yang, F; Patel, S; Kao, Y H; Shaw, D T ^[1]

---

1. New York State Institute on Superconductivity, State University of New York at Buffalo, Buffalo, New York 14260 (US)

A transition buffer, consisting of subbuffers grown at different temperatures, was used to enhance the crystallinity and the transport properties of YBa{sub 2}Cu{sub 3}O{sub 6.8} (YBCO) films on metallic substrates. Films were fabricated using {ital in} {ital situ} laser deposition and were strongly {ital c}-axis oriented. Critical temperature of 87 K and critical current density of 3{times}10{sup 4} A/cm{sup 2} at 77 K were obtained for a 0.5-{mu}m-thick YBCO film with a 0.2 {mu}m transition yttrium- stabilized ZrO{sub 2} buffer layer. Also, the magnetic field dependence of {ital J}{sub {ital c}} could be enhanced by using Pt-coated metallic substrates.

• OSTI ID: 6258995
• Journal Information: Applied Physics Letters; (USA), Vol. 58:11; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CRITICAL CURRENT
COPPER OXIDES
YTTRIUM OXIDES
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILMS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties