Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
권호 표지
DOI QR코드

DOI QR Code

Transport Current Distribution of a SmBCO Coated Conductor

  • Published : 2007.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

The transport current distribution across the tape width of a SmBCO coated conductor was investigated. The current distribution was estimated by applying an inversion process to the field distribution measured in the vicinity of the tape by using a scanning Hall probe method. The obtained result is well consistent with one predicted by the Bean model, however, at the edges the current are not constant and do not generally plateau, on the contrary.

Keywords

References

  1. E. H. Brandt and M. Indenbom, "Type-II-superconductor strip with current in a perpendicular magnetic field," Phys. Rev. B vol. 48, pp. 12893-12906, 1993 https://doi.org/10.1103/PhysRevB.48.12893
  2. T. H. Johansen, M. Baziljevich, H. Bratsberg, and Y. Galperin, P. E. Lindelof Y. Shen and P. Vase, "Direct observation of the current distribution in thin superconducting strips using magneto-optic imaging," Phys. Rev. B vol. 54, pp. 16264-16269, 1996 https://doi.org/10.1103/PhysRevB.54.16264
  3. L. Lucarelli, G. Luepke, T. J. Haugan, G. A. Levin and P. N. Barnes, "Time-resolved magneto-optical imaging of $Y_1Ba_2Cu_3O_7-{\delta}$ thin films in high-frequency AC current regime," Supercond. Sci. Technol. vol. 19, pp. 667-670, 2006 https://doi.org/10.1088/0953-2048/19/6/041
  4. A. V. Bobyl, D. V. Shantsev, Y. M. Galperin, T. H. Johansen, M. Baziljevich and S. F. Karmanenko, "Relaxation of transport current distribution in a YBaCuO strip studied by magneto-optical imaging," Supercond. Sci. Technol. vol. 15, pp. 82-89, 2002 https://doi.org/10.1088/0953-2048/15/1/314
  5. N. Amemyia, Y. Shinkai, Y. Iijima, K. Kakimto, K. Takeda, "Experimental determination of two-dimensional critical current density distribution in YBCO coated conductors," Supercond. Sci. Technol. vol. 14, pp. 611-617, 2001 https://doi.org/10.1088/0953-2048/14/8/317
  6. M. Polak, P. Usak, E. Demencik, "The distribution of magnetization and transport currents in DyBCO tape," Physica C vol. 440 pp.40-44, 2006 https://doi.org/10.1016/j.physc.2006.03.054
  7. P. Usak, "Measurement of the transport current distribution in a superconducting tape," Physica C vol. 316 pp. 229-233, 1999 https://doi.org/10.1016/S0921-4534(99)00283-X
  8. P. Usak, "The measurement of current distribution in superconducting tape. Comparison of destructive and non-destructive methods," Physica C vol. 384 pp. 93-101, 2003 https://doi.org/10.1016/S0921-4534(02)01979-2
  9. Jaeun Yoo, Jaeyoung Lee, and Dojun Youm, "Field dependence of current profiles induced in a superconducting film," in press J. Korean Phys. Soc. 2007 https://doi.org/10.3938/jkps.51.1776
  10. Jaeun Yoo, SangMoo Lee, YeHyun Jung, Jaeyoung Lee, Dzung Nguyen Xuan, Dojun Youm, Hosup Kim, Hongsoo Ha, and SangSoo Oh, "Calculations of AC magnetic losses from the experimental field profiles in a coated conductor under various external fields and temperatures," accepted in IEEE Trans. Appl. Supercond. 2007
  11. B. S. Lee, K. C. Chung, S. M. Lim, H. J. Kim, D. Youm and C. Park, "Fabrication of $Sm_1Ba_2Cu_3O_7$ coated conductors using the co-evaporation method," Supercond. Sci. Technol. vol. 17, pp. 580-584 , 2004 https://doi.org/10.1088/0953-2048/17/4/002
  12. H. S. Ha, H. S. Kim, J. S. Yang, Y. H. Jung, R. K. Ko, K. J. Song, D. W. Ha, S. S Oh, H. K. Kim, K. K. Yoo, C. Park, D. Youm, S. H. Moon and J. H. Joo, "Critical current density of SmBCO coated conductor on IBAD-MgO substrate fabricated by co-evaporation," Physica C vol. 463-465, pp.493-496, 2007 https://doi.org/10.1016/j.physc.2007.01.039