Skip to main content Accessibility help
×
Home

REBa2ZrO5.5 (RE = La, Ce, Eu, and Yb): Synthesis, characterization, and their potential use as substrates for YBa2Cu3O7–δ superconductors

  • R. Jose (a1), Asha M. John (a1), J. Kurian (a1), P. K. Sajith (a1) and J. Koshy (a1)...

Abstract

A new class of complex perovskites REBa2ZrO5.5 (where RE = La, Ce, Eu, and Yb) have been synthesized and sintered as single phase materials by the solid state reaction method. The structure of these materials was studied by x-ray diffraction, and all of them were found to be isostructural, having a cubic perovskite structure. X-ray diffraction and resistivity measurements have shown that there is no detectable chemical reaction between YBa2Cu3O7–delta; and REBa2ZrO5.5 even under severe heat treatment at 950 °C, and that the addition of REBa2ZrO5.5 up to 20 vol.% in YBa2Cu3O7–δ shows no detrimental effect on the superconducting properties of YBa2Cu3O7-δ. Dielectric constants and loss factors are in the range suitable for their use as substrates for microwave applications. Thick films of YBa2Cu3O7–δ fabricated on polycrystalline REBa2ZrO5.5 substrates gave a zero resistance transition temperature Tc(0) ∼ 92 K, indicating the suitability of these materials as substrates for YBa2Cu3O7–δ.

Copyright

Corresponding author

a)Author to whom all correspondence should be addressed.

References

Hide All
1.Wu, X. D., Dutta, B., Hegde, M. S., Inam, A., Venkatesan, T., Chase, E. W., Chang, C. C., and Howard, R., Appl. Phys. Lett. 54, 179 (1989).
2.Humphreys, R. G., Satchell, J. S., Chem, N. G., Edwards, J. A., Goodyear, S. W., Blenkinsop, S. E., Dosser, O. D., and Cullis, A. G., Supercond. Sci. Technol. 3, 38 (1990).
3.Pinto, R., Goyal, N., Pai, S. P., Apte, P. R., Gupta, L. C., and Vijayaraghavan, R., J. Appl. Phys. 73, 5105 (1993).
4. Julia Phillips, M., J. Appl. Phys. 79, 1829 (1996).
5.Koshy, J., Kumar, K. S., Kurian, J., Yadava, Y. P., and Damodaran, A. D., Physica C 234, 211 (1994).
6.Koshy, J., Kumar, K. S., Kurian, J., Yadava, Y. P., and Damodaran, A. D., J. Am. Ceram. Soc. 78, 3088 (1995).
7.Koshy, J., Kurian, J., Thomas, J. K., Yadava, Y. P., and Damodaran, A. D., Jpn. J. Appl. Phys. 33, 117 (1994).
8.Zhang, X. and Wang, Q., J. Am. Ceram. Soc. 74, 2846 (1991).
9.Wells, A. F., Structural Inorganic Chemistry, 5th ed. (Clarendon Press, Oxford, 1996), p. 279.

REBa2ZrO5.5 (RE = La, Ce, Eu, and Yb): Synthesis, characterization, and their potential use as substrates for YBa2Cu3O7–δ superconductors

  • R. Jose (a1), Asha M. John (a1), J. Kurian (a1), P. K. Sajith (a1) and J. Koshy (a1)...

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed