Scanning micro-Hall probe mapping of magnetic flux distributions and current densities in YBa{sub 2}Cu{sub 3}O{sub 7}

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:121634

Xing, W; Heinrich, B ^[1]; Zhou, H ^[2]

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1. Simon Fraser Univ., British Columbia (Canada)
2. CTF Systems, Inc., British Columbia (Canada); and others

Mapping of the magnetic flux density B{sub z} (perpendicular to the film plane) for a YBa{sub 2}Cu{sub 3}O{sub 7} 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 (NASA), Washington, DC (United States); National Aeronautics and Space Administration, Houston, TX (United States). Lyndon B. Johnson Space Center
• OSTI ID: 121634
• Report Number(s): CONF-940627-Vol.2; ON: TI95017155; TRN: 99:003573
• 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: 1994; Related Information: Is Part Of Proceedings of the fourth international conference and exhibition: World Congress on superconductivity. Volume 2; Krishen, K.; Burnham, C. [eds.] [National Aeronautics and Space Administration, Houston, TX (United States). Lyndon B. Johnson Space Center]; PB: 400 p.
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
36 MATERIALS SCIENCE
MAGNETIC FLUX
MAPPING
HIGH-TC SUPERCONDUCTORS
HALL EFFECT
COPPER OXIDES
BARIUM COMPOUNDS
YTTRIUM COMPOUNDS
SUPERCONDUCTING FILMS