Scanning micro-Hall probe mapping of magnetic flux distributions and current densities in YBa2Cu3O7 thin films

Conference · Sat Apr 01 00:00:00 EST 1995

OSTI ID:135378

Xing, W; Heinrich, B; Zhou, H; Fife, A A; Cragg, A R; Grant, P D ^[1]

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1. CTF Systems, Inc., Port Coquitlam, British Columbia (Canada)

Mapping of the magnetic flux density B{sub z} (perpendicular to the film plane) for a YBa2Cu3O7 thin-film sample was carried out using a scanning micro-Hall probe. The sheet magnetization and sheet current densities were calculated from the B{sub z} distributions. From the known sheet magnetization, the tangential (B{sub x,y}) and normal components of the flux density B were calculated in the vicinity of the film. It was found that the sheet current density was mostly determined by 2B{sub x,y}/d, where d is the film thickness. The evolution of flux penetration as a function of applied field will be shown.

• Research Organization: National Aeronautics and Space Administration, Houston, TX (United States). Lyndon B. Johnson Space Center
• OSTI ID: 135378
• Report Number(s): N-96-10272; NASA-CP-3290-VOL-2; S-792-VOL-2; NAS-1.55:3290-VOL-2; CONF-940627-; TRN: 9610279
• Resource Relation: Conference: 4. international conference and exhibition of the World Congress on Superconductivity, Orlando, FL (United States), 27 Jun - 1 Jul 1994; Other Information: PBD: Apr 1995; Related Information: Is Part Of Proceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2; Krishen, K.; Burnham, C.; PB: [10] p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
YTTRIUM OXIDES
FLUX DENSITY
CURRENT DENSITY
BARIUM OXIDES
COPPER OXIDES
MAGNETIC FLUX
MAPPING
THIN FILMS
MAGNETIZATION