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Proceedings Paper

Influence of irradiation on the magnetic properties of Bi-2212 single crystals
Author(s): Sergei N. Barilo; Valentina I. Gatalskaya; Gennadii V. Gatalskii; Sergei L. Kurockin
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Paper Abstract

Measurements of magnetization versus temperature and magnetic field have been performed on single crystals of Bi2Sr2CaCu2Oy irradiated by fast electrons in temperature range from 4.2 K to 80 K and at magnetic field up to 6T. The critical current density under irradiation by fluence of 2 X 1018 cm-2 (E equals 4 MeV) is enhanced by 1.3 times and amounts to 1.3 X 106 Acm-2 at 4.2 K and zero magnetic field (H (parallel) c). At high temperatures the dependence of the irreversibility field Birr(T) is described by linear expression. However, at temperature decreasing Birr increases very abruptly near 20 K - 30 K. For irradiated state the irreversibility line shifts towards higher magnetic fields and Birr changes drastically near 20 - 25 K. The results can be account for by the model of a crossover from 3D to 2D pinning.

Paper Details

Date Published: 24 March 1999
PDF: 4 pages
Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.343012
Show Author Affiliations
Sergei N. Barilo, Institute of Solid State and Semiconductor Physics (Belarus)
Valentina I. Gatalskaya, Institute of Solid State and Semiconductor Physics (Belarus)
Gennadii V. Gatalskii, Institute of Solid State and Semiconductor Physics (Belarus)
Sergei L. Kurockin, Institute of Solid State and Semiconductor Physics (Belarus)


Published in SPIE Proceedings Vol. 3724:
International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications
Andrzej Majchrowski; Jerzy Zielinski, Editor(s)

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