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Proceedings Paper

Nature of vortex pinning in the MgB2 superconductor
Author(s): Kijoon H.P. Kim; Mun-Seog Kim; C. U. Jung; Min-Seok Park; Won Nam Kang; Sung-Ik Lee
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Paper Abstract

The magnetic-field dependence of the irreversible magnetization of the binary superconductor MgB2 was measured. For most of the temperature region below Tc, bulk pinning dominated surface pinning, thus, the magnetization curves, M(H), were well described by the critical-state model. Moreover, the M(H) curves at various temperatures scaled when the field and the magnetization were properly normalized. The universal scaling of the magnetization indicated that the pinning was uniquely determined at temperatures below T=Tc.

Paper Details

Date Published: 7 November 2002
PDF: 6 pages
Proc. SPIE 4811, Superconducting and Related Oxides: Physics and Nanoengineering V, (7 November 2002); doi: 10.1117/12.452280
Show Author Affiliations
Kijoon H.P. Kim, Pohang Univ. of Science and Technology (South Korea)
Mun-Seog Kim, Pohang Univ. of Science and Technology (South Korea)
C. U. Jung, Pohang Univ. of Science and Technology (South Korea)
Min-Seok Park, Pohang Univ. of Science and Technology (South Korea)
Won Nam Kang, Pohang Univ. of Science and Technology (South Korea)
Sung-Ik Lee, Pohang Univ. of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4811:
Superconducting and Related Oxides: Physics and Nanoengineering V
Ivan Bozovic; Davor Pavuna, Editor(s)

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