Skip to main content
Log in

Synthesis of New Pb-Based 1222 Cuprates Containing Phosphorus, (Pb0.75P0.25)Sr2(RE2–xy Ce x Sr y )Cu2O z (RE = Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y)

  • Original Paper
  • Published:
Journal of Superconductivity and Novel Magnetism Aims and scope Submit manuscript

Abstract

New Pb-based 1222 cuprates containing phosphorus have been synthesized in the (Pb0.75P0.25)Sr2- (RE2–xy Ce x Sr y )Cu2O z (RE = Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y) systems. The almost-single phase samples are obtained for 0.5≤x≤1.0 and y=0.1 in the cases of RE = Nd, Dy, Ho, Er, Tm, Yb and Y, while for 0.3≤x≤1.0 and y=0.1 in the cases of RE = Sm, Eu and Gd. The samples crystallize in a tetragonal lattice, the lattice parameters a and c are decreasing with the decrease of the ionic radius of the RE element. Even after annealing under 143 atm O2 atmosphere at 400 °C, almost all the samples with the common values x=0.5 and y=0.1 are semiconductors with a transport process followed by three-dimensional variable range hopping. However, the samples of RE = Sm, Eu and Gd, which are of almost single 1222 phase, even for x=0.3 and y=0.1, show superconductivity with the onsets at about 25 K, 20 K and 22 K, respectively. Through this study, we find very important procedure for discovery of new superconducting 1222 compound.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Adachi, S., Inoue, O., Kawashima, S., Adachi, H., Ichikawa, Y., Setsune, K., Wasa, K.: Physica C 168, 1 (1990)

    Article  ADS  Google Scholar 

  2. Maeda, T., Sakuyama, K., Koriyama, S., Ichinose, A., Yamauchi, H., Tanaka, S.: Physica C 169, 133 (1990)

    Article  ADS  Google Scholar 

  3. Min, J., Liang, J., Wang, C., Wu, F., Chen, H., Dong, C., Rao, G.: J. Phys., Condens. Matter 7, 5982 (1995)

    Article  ADS  Google Scholar 

  4. Luo, H.M., Qu, B., Chen, Z.Y., Qian, Y.T., Yang, L.: Physica C 270, 253 (1996)

    Article  ADS  Google Scholar 

  5. Sasakura, H., Akagi, Y., Tsukui, S., Adachi, M.: J. Supercond. Nov. Magn. 21, 249 (2008)

    Article  Google Scholar 

  6. Sasakura, H., Akagi, Y., Tsukui, S., Adachi, M.: J. Supercond. Nov. Magn. 22, 755 (2009)

    Article  Google Scholar 

  7. Sasakura, H., Akagi, Y., Tanaka, M., Tsukui, S., Adachi, M.: J. Supercond. Nov. Magn. 24, 1623 (2011)

    Article  Google Scholar 

  8. Sasakura, H., Akagi, Y., Tanaka, M., Tsukui, S., Adachi, M.: J. Supercond. Nov. Magn. (2011). Published online. doi:10.1007/s10948-011-1286-2

  9. Shannon, R.D.: Acta Crystallogr. A, Found. Crystallogr. 32, 751 (1976)

    Article  ADS  Google Scholar 

  10. Mott, N.F., Davis, E.A.: Electron Process in Non-Crystalline Materials. Clarendon, Oxford (1971)

    Google Scholar 

  11. Paracchini, C., Calestani, G., Francesconi, M.G.: Physica C 167, 249 (1990)

    Article  ADS  Google Scholar 

  12. Jayaram, B., Lanchester, P.C., Weller, M.T.: Phys. Rev. 43, 5444 (1991)

    Article  ADS  Google Scholar 

  13. Sasakura, H., Akagi, Y., Hayashi, Y.: Physica B 194/196, 2273 (1994)

    Article  ADS  Google Scholar 

  14. Cao, G., Wang, S., Quian, Y., Yu, W., Chen, Z., Lu, B., Zhang, Y.: Physica C 243, 113 (1995)

    Article  ADS  Google Scholar 

  15. Sasakura, H.: Physica C 292, 125 (1997)

    Article  ADS  Google Scholar 

  16. Sasakura, H., Tagaya, K., Akagi, Y., Oka, T., Tsukui, S., Adachi, M., Oshima, R.: J. Supercond. Nov. Magn. 14, 581 (2001)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Hiroyuki Sasakura.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sasakura, H., Akagi, Y., Tanaka, M. et al. Synthesis of New Pb-Based 1222 Cuprates Containing Phosphorus, (Pb0.75P0.25)Sr2(RE2–xy Ce x Sr y )Cu2O z (RE = Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Y). J Supercond Nov Magn 25, 305–309 (2012). https://doi.org/10.1007/s10948-011-1302-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10948-011-1302-6

Keywords

Navigation