Irradiation effect on the pinning potential of YBCO single crystal

Sergei N. Barilo; Valentina I. Gatalskaya; Gennadii V. Gatalskii; Sergei L. Kurockin

doi:10.1117/12.435837

10 August 2001 Irradiation effect on the pinning potential of YBCO single crystal

Sergei N. Barilo, Valentina I. Gatalskaya, Gennadii V. Gatalskii, Sergei L. Kurockin

Proceedings Volume 4412, International Conference on Solid State Crystals 2000: Growth, Characterization, and Applications of Single Crystals; (2001) https://doi.org/10.1117/12.435837
Event: International Conference on Solid State Crystals 2000, 2000, Zakopane, Poland

Abstract

The results of the magnetization measurements of single crystal of Yba₂Cu₃O_y with Tc equals 91K are adduced. The temperature, field and time dependencies of the remnant magnetization M_r(T, B, t) were obtained using VSM method for the temperature range from 4.2 K to 75 K for Hc configuration. The single crystal has been irradiated by the fast electrons with fluences up to 2 X 10¹⁸ cm^-2. The relaxation of M_r(t) obeys to the logarithmic law for the time interval t equals 1 h for whole temperature range except the approximately 30-50 K interval for starting and irradiated states. After irradiation the J_c decease despite the flux creep reduction. The irradiation become less effective at high temperatures. The results are discussed in frame of conventional flux creep theory and of the interaction model of radiation defects with the background ones.

Citation Download Citation

Sergei N. Barilo, Valentina I. Gatalskaya, Gennadii V. Gatalskii, and Sergei L. Kurockin "Irradiation effect on the pinning potential of YBCO single crystal", Proc. SPIE 4412, International Conference on Solid State Crystals 2000: Growth, Characterization, and Applications of Single Crystals, (10 August 2001); https://doi.org/10.1117/12.435837

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