Influence of the dynamic vortex-pinning center interaction on the critical current in the layered HT[c] superconductors

• Autorzy: Sosnowski J.
• Języki publikacji: EN

Abstrakty

EN

Interaction of the magnetic vortices in the layered structure of the high-temperature oxide superconductors with the pinning centers created by the heavy ions irradiation is investigated. The influence of this dynamic interaction on the current-voltage characteristics and critical current of the Bi:2212 high temperature superconductor is considered. The results of research allowed to determine the current-voltage characteristics dependence on the heavy ions irradiation dose, as a function of temperature and magnetic field and to predict the anisotropy of the critical current in this material, depending on the magnetic field direction.

Słowa kluczowe

EN

high-temperature superconductors; ion beam effect; magnetic anisotropy; magnetic field direction; high-temperature oxide superconductors; critical current; magnetic fortices; layered structure

PL

nadprzewodnik wysokotemperaturowy; zjawisko wiązki jonowej; anizotropia magnetyczna; prąd krytyczny

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2004
• Tom: Vol. 45, no 1
• Strony: 21--29
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Sosnowski J.

• Electrotechnical Institute, Pożaryskiego 28, 04-703 Warszawa, Poland

Bibliografia

• 1. M. DAEUMUNG, J.M. SEUNTJENS, D.C. LARBALBSTIER, Oxygen-defect flux pinning, anomalous magnetization and intra-grain granularity in YBa2 Cu3 Oj-y, Nature, 346, 6282, 332-334, 1990.
• 2. J. SOSNOWSKI, R. CLAD, R. KUENTZLER, On the magnetic irreversibility, critical current and flux trapping in high Tc oxide superconductors, Cryogenics, 33, 1, 103—107, 1993.
• 3. U. WELP, W.K. KWOK, G.W. CRABTREE, K. G. VANDERVOORT, J.Z. Liu, Magnetization hysteresis and, flux pinning in twinned, and. untwinned YBa2 Cu3 O-j—y single crystals, Appl. Phys. Lett., 57, 2, 84-86, 1990.
• 4. L.F. GOODRICH, A.N. SRIVASTAVA, M. YUYAMA, H. WADA, n-value and second derivative of the superconductor voltage-current characteristics, IEEE Trans. Appl. Supercond., 3, 1, 1265-1268, 1993.
• 5. T. MIYAZAKI, Y. INOUE, T. MIYATAKE, Y. FUKUMOTO, M. SHIMADA, Effect of heat treatment on critical current density and n-value of (Nb,Ti)3Sn multifilamentary superconducting wire, IEEE Trans. Appl. Supercond., 5, 2, 1781-1784, 1995.
• 6. N. AMEMIYA, K. MIYAMOTO, N. BANNO, O. TSUKAMOTO, Numerical analysis of AC losses in high Tc superconductors based, on E-j characteristics represented with n-value, IEEE Trans. Appl. Supercond., 7, 2, 2110-2113, 1997.
• 7. M.W. COFPEY, Pancake vortex in a superconducting cylinder, Phys. Rev. B, 51, 21, 15600—15603, 1995.
• 8. A.L. FETTER, Normal modes and specific heat of a lattice of undamped pancake vortices in thin superconducting multilayers, Phys. Rev. B, 50, 18, 13695-13705, 1994.
• 9. J. SOSNOWSKI, M. RABARA, The critical current problems in HTc superconducting tapes Bi:2223 type [in Polish], IV Conference Progress in Electrotechnology, p. 231-236, 2000.