Published September 24, 2003
| Version v1
Journal article
Magnetic relaxation and lower critical field in MgB2 wires
- 1. Northwest Institute for Nonferrous Metal Research, PO Box 51, Xi'an 710016 (China)
- 2. School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052 (Australia)
- 3. Jesse W Beams Laboratory, University of Virginia, Charlottesville, VA 22901 (United States)
Description
Magnetic relaxation behaviour, critical current density Jc and lower critical field Hc1 have been investigated in MgB2/Ta/Cu wires. It is found that Jc and Hc1 decrease linearly with temperature in the whole temperature region below Tc. The relaxation rate is very small and has a weak temperature dependence compared to high-Tc superconductors. Also, the pinning potential is much larger and the temperature and field dependences of the pinning potential are briefly discussed
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/15/6395/cm3_37_007.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/15/6395/cm3_37_007.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/15/37/007;
- PII
- S0953-8984(03)64714-4;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 15
- Journal Issue
- 37
- Journal Page Range
- p. 6395-6402
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35018622
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- COPPER; CRITICAL CURRENT; CRYSTAL STRUCTURE; CURRENT DENSITY; HIGH-TC SUPERCONDUCTORS; MAGNESIUM BORIDES; MAGNETIC FIELDS; MAGNETIC FLUX; SUPERCONDUCTIVITY; TANTALUM; TEMPERATURE DEPENDENCE; WIRES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BORIDES; BORON COMPOUNDS; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; ELEMENTS; MAGNESIUM COMPOUNDS; METALS; PHYSICAL PROPERTIES; REFRACTORY METALS; SUPERCONDUCTORS; TRANSITION ELEMENTS; TYPE-II SUPERCONDUCTORS