Advertisement

Journal of Superconductivity and Novel Magnetism

, Volume 24, Issue 8, pp 2279–2283 | Cite as

SmFeAsO0.8F0.2 Wires Prepared Using Different Sheaths by the Powder-in-Tube Method

  • Y. L. Chen
  • Y. J. Cui
  • H. Zhang
  • C. H. Cheng
  • Y. Zhao
Original Paper
  • 45 Downloads

Abstract

SmFeAsO0.8F0.2 wires with composite Cu/Nb or Ta sheaths have been fabricated using an in situ powder-in-tube method. Cu diffusion into the core was observed, which led to a fuzzy boundary between the sheath and core for Cu/Nb-sheathed SmFeAsO0.8F0.2 wires, and destroyed the superconducting phase of SmFeAsO0.8F0.2. However, superconductivity has been observed in the Ta-sheathed SmFeAsO0.8F0.2 wires with T c=52.5 K. A severe weak-link effect depressed the development of global supercurrent. A peak effect with a strongly temperature-dependent peak field H peak has been observed in the J cH curves over the range 10–40 K. The HT phase diagram was similar to that of a previous report.

Keywords

SmFeAsO0.8F0.2 wires Superconductivity Peak effect Phase diagram 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Kamihara, Y., Watanabe, T., Hirano, M., Hosono, H.: J. Am. Chem. Soc. 130, 3296 (2008) CrossRefGoogle Scholar
  2. 2.
    Takahashi, H., Igawa, K., Arii, K., Kamihara, Y., Hirano, M., Hosono, H.: Nature 453, 376 (2008) ADSCrossRefGoogle Scholar
  3. 3.
    Chen, G.F., Li, Z., Wu, D., Li, G., Hu, W.Z., Dong, J., Zheng, P., Luo, J.L., Wang, N.L.: Phys. Rev. Lett. 100, 247002 (2008) ADSCrossRefGoogle Scholar
  4. 4.
    Matano, K., Ren, Z.A., Dong, X.L., Sun, L.L., Zhao, Z.X., Zheng, G.Q.: Europhys. Lett. 83, 5700 (2008) CrossRefGoogle Scholar
  5. 5.
    Ren, Z.A., Yang, J., Lu, W., Yi, W., Shen, X.L., Li, Z.C., Che, G.C., Dong, X.L., Sun, L.L., Zhou, F., Zhao, Z.X.: Europhys. Lett. 82, 57002 (2008) ADSCrossRefGoogle Scholar
  6. 6.
    Chen, X.H., Wu, T., Wu, G., Liu, R.H., Chen, H., Fang, D.F.: Nature 453, 761 (2008) ADSCrossRefGoogle Scholar
  7. 7.
    Chen, Y.L., Cui, Y.J., Yang, Y., Zhang, Y., Wang, L., Cheng, C.H., Sorrell, C., Zhao, Y.: Supercond. Sci. Technol. 21, 115014 (2008) ADSCrossRefGoogle Scholar
  8. 8.
    Qi, Y.P., Zhang, X.P., Gao, Z.S., Zhang, Z.Y., Wang, L., Wang, D.L., Ma, Y.W.: Physica C 469, 717 (2009) ADSCrossRefGoogle Scholar
  9. 9.
    Gao, Z.S., Wang, L., Qi, Y.P., Wang, D.L., Zhang, X.P., Ma, Y.W., Yang, H., Wen, H.H.: Supercond. Sci. Technol. 21, 112001 (2008) ADSCrossRefGoogle Scholar
  10. 10.
    Gao, Z.S., Wang, L., Qi, Y.P., Wang, D.L., Zhang, X.P., Ma, Y.W.: Supercond. Sci. Technol. 21, 105024 (2008) ADSCrossRefGoogle Scholar
  11. 11.
    Umezawa, A., Crabtree, G.W., Liu, J.Z., Weber, H.W., Kwok, W.K., Nunez, L.H., Moran, T.J., Sowers, C.H., Claus, H.: Phys. Rev. B 36, 7151 (1987) ADSCrossRefGoogle Scholar
  12. 12.
    Muralidhar, M., Murakami, M.: Phys. Rev. B 62, 13911 (2000) ADSCrossRefGoogle Scholar
  13. 13.
    Feng, Y., Zhou, L., Wen, J.G., Koshizuka, N., Sulpice, A., Tholence, J.L., Vallier, J.C., Monceau, P.: Physica C 297, 75 (1998) ADSCrossRefGoogle Scholar
  14. 14.
    Zehetmayer, M., Eisterer, M., Jun, J., Kazakov, S.M., Karpinski, J., Birajdar, B., Eibl, O., Weber, H.W.: Phys. Rev. B 69, 054510 (2004) ADSCrossRefGoogle Scholar
  15. 15.
    Werthamer, N.R., Helfand, E., Hohenberg, P.C.: Phys. Rev. 147, 295 (1966) ADSCrossRefGoogle Scholar
  16. 16.
    Senatore, C., Flükiger, R., Cantoni, M., Wu, G., Liu, R.H., Chen, X.H.: Phys. Rev. B 78, 054514 (2008) ADSCrossRefGoogle Scholar
  17. 17.
    Chen, G.F., Li, Z., Dong, J., Li, G., Hu, W.Z., Zhang, X.D., Song, X.H., Zheng, P., Wang, N.L., Luo, J.L.: Phys. Rev. B 78, 224512 (2008) ADSCrossRefGoogle Scholar
  18. 18.
    Chikumoto, N., Kosugi, M., Matsuda, Y., Konczykowski, M., Kishio, K.: Phys. Rev. B 57, 14507 (1998) ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Y. L. Chen
    • 1
  • Y. J. Cui
    • 1
  • H. Zhang
    • 1
  • C. H. Cheng
    • 2
  • Y. Zhao
    • 1
    • 2
  1. 1.Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), Superconductivity R&D Center (SRDC)Southwest Jiaotong UniversityChengduChina
  2. 2.School of Materials Science and EngineeringUniversity of New South WalesSydneyAustralia

Personalised recommendations