High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O

Z. Iqbal, A. P B Sinha, D. E. Morris, J. C. Barry, G. J. Auchterlonie, B. L. Ramakrishna

Research output: Contribution to journalArticle

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Abstract

A primarily single phase compound of composition (Tl0.5Pb 0.5)Sr2(Eu2-xCex)Cu 2O9 (where x ranges from ≪0.1 to 0.17) has been synthesized in the so-called 1222 structure. Bulk superconductivity near 40 K is induced via oxygen doping in 100 bar of oxygen at 550°C. The material has been structurally characterized by diffraction and high-resolution lattice imaging techniques. The lattice images reveal the presence of some intergrowths of a 1212 structure nonsuperconducting (Tl0.5Pb0.5)Sr 2EuCu2O7 phase in the bulk 1222 structure of the parent compound and indications of periodicity that suggest the possible existence of a new, composite structure 2434 phase.

Original languageEnglish (US)
Pages (from-to)2234-2237
Number of pages4
JournalJournal of Applied Physics
Volume70
Issue number4
DOIs
StatePublished - 1991

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high pressure oxygen
superconductivity
composite structures
oxygen
imaging techniques
periodic variations
indication
high resolution
diffraction

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Iqbal, Z., Sinha, A. P. B., Morris, D. E., Barry, J. C., Auchterlonie, G. J., & Ramakrishna, B. L. (1991). High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O. Journal of Applied Physics, 70(4), 2234-2237. https://doi.org/10.1063/1.349414

High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O. / Iqbal, Z.; Sinha, A. P B; Morris, D. E.; Barry, J. C.; Auchterlonie, G. J.; Ramakrishna, B. L.

In: Journal of Applied Physics, Vol. 70, No. 4, 1991, p. 2234-2237.

Research output: Contribution to journalArticle

Iqbal, Z, Sinha, APB, Morris, DE, Barry, JC, Auchterlonie, GJ & Ramakrishna, BL 1991, 'High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O', Journal of Applied Physics, vol. 70, no. 4, pp. 2234-2237. https://doi.org/10.1063/1.349414
Iqbal Z, Sinha APB, Morris DE, Barry JC, Auchterlonie GJ, Ramakrishna BL. High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O. Journal of Applied Physics. 1991;70(4):2234-2237. https://doi.org/10.1063/1.349414
Iqbal, Z. ; Sinha, A. P B ; Morris, D. E. ; Barry, J. C. ; Auchterlonie, G. J. ; Ramakrishna, B. L. / High-pressure oxygen-induced bulk superconductivity in 1222 structure Tl-Pb-Sr-Eu(Ce)-Cu-O. In: Journal of Applied Physics. 1991 ; Vol. 70, No. 4. pp. 2234-2237.
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