Critical Current Problems in HTc Superconductors

• Authors: J. Sosnowski
• Languages of publication: EN

Abstracts

EN

New results of the investigations critical current problems in the high temperature oxide superconductors are presented, basing on the flux pinning analysis. Model of the pinning interaction of the nanosized centers with pancake vortices is proposed, while comparison of the received results concerning the dependence of the potential barrier versus transport current with other pinning forces approaches is presented. Special attention is devoted to the investigations of the influence the initial position of the vortex captured at pinning center on the current-voltage characteristics and critical current.

Keywords

EN

74.72.-h; 74.25.Wx; 74.25.Sv; 74.25.Uv

Discipline

• 74.72.-h: Cuprate superconductors
• 74.25.Wx: Vortex pinning (includes mechanisms and flux creep)
• 74.25.Uv: Vortex phases (includes vortex lattices, vortex liquids, and vortex glasses)
• 74.25.Sv: Critical currents

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 2
• Pages: 328-330

Dates

published

2010-08

Contributors

author

J. Sosnowski

• Electrotechnical Institute, M. Pożaryskiego 28, 04-703 Warsaw, Poland

References

• 1. J. Sosnowski, Acta Phys. Pol. A 114, 269 (2008)
• 2. M.V. Feigelman, V. Geshkenbein, A.I. Larkin, V. Vinokur, Phys. Rev. Lett. 63, 2303 (1983)
• 3. A.I. Larkin, Yu.N. Ovchinnikov, J. Low Temp. Phys. 34, 409 (1979)
• 4. H. Yamada, H. Yamasaki, K. Develos-Bagarinao, Y. Nakagawa, Y. Mawatari, J.C. Nie, H. Obara, S. Kosaka, Supercond. Sci. Technol. 17, 58 (2004)
• 5. K. Okamura, M. Kiuchi, E.S. Otabe, T. Yasuda, T. Matsushita, S. Okayasu, Supercond. Sci. Technol. 17, S20 (2004)
• 6. Y. Zhao, C.H. Cheng, Y. Feng, S. Shibata, N. Koshizuka, M. Murakami, Supercond. Sci. Technol. 17, S83 (2004)
• 7. V.R. Misko, S. Savel'ev, A.L. Rakhmanov, F. Nori, Phys. Rev. B 75, 024509 (2007)

Identifiers

DOI

10.12693/APhysPolA.118.328