Published 1996 | Version v1
Report Open

Flux pinning in two-dimensional high temperature superconductors

Creators

  • 1. Atominstitut der Oesterreichischen Universitaeten, Wien (Austria)
  • 2. Argonne National Lab., IL (United States)

Description

Various types of high temperature superconducting single crystals (TI-2223, Bi-2212, and Y-123 with oxygen contents between 6.4 and 6.64) were investigated by SQUID magnetometry. Both materials show very open-quotes lowclose quotes lying irreversibility lines (Hllc), which follow an exponential law-and rise rapidly below T/Tc=0.5. High critical current P densities are found only at low temperatures, e.g. Jc is about 2.7 circ 1010Am-2 at 1 T and 5 K in TI-2223. A comparison of the condensation energy provided by different types of defects with the thermal energy gives evidence for pinning of individual pancakes by the as-grown defect structure

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as DE96014865; NTIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
4 p.
Report number
ANL--MSD/CP-90756

Conference

Title
21. international conference on low temperature physics.
Dates
8-14 Aug 1996.
Place
Prague (Czech Republic).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
28017408
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BISMUTH COMPOUNDS; CRITICAL CURRENT; CURRENT DENSITY; HIGH-TC SUPERCONDUCTORS; MAGNETIC FLUX; MAGNETOMETERS; THALLIUM COMPOUNDS; YTTRIUM COMPOUNDS
Descriptors DEC
CURRENTS; ELECTRIC CURRENTS; MEASURING INSTRUMENTS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Contract/Grant/Project number
Contract W-31109-ENG-38
Funding organization
USDOE, Washington, DC (United States); Fonds zur Foerderung der Wissenschaftlichen Forschung, Vienna (Austria).
Secondary number(s)
CONF-960849--5.