Aluminum substitution in Ba2YCu3O7

T. Siegrist, L. F. Schneemeyer, J. V. Waszczak, N. P. Singh, R. L. Opila, B. Batlogg, L. W. Rupp, D. W. Murphy

Research output: Contribution to journalArticle

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Abstract

We have investigated the effect of aluminum incorporation on the structure and superconducting transition temperature of single crystals of high-Tc cuprate perovskite superconductors. The use of alumina crucibles for crystal growth results in incorporation of aluminum to varying extents in crystals of composition Ba2YCu3-xAlxO7, x=0-0.22. We have performed x-ray studies on several crystals to determine structural effects of Al incorporation. We find that aluminum substitutes only for copper atoms in the chains. Superconducting transition temperatures Tc determined by dc diamagnetic susceptibility measurements change only slightly, to 80 K for x=0.1, then drop sharply with higher aluminum concentrations. Results are discussed in relation to the importance of the Cu-O chains and oxygen stoichiometry to superconductivity in Ba2YCu3O7.

Original languageEnglish
Pages (from-to)8365-8368
Number of pages4
JournalPhysical Review B
Volume36
Issue number16
DOIs
StatePublished - 1 Jan 1987

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Aluminum
Substitution reactions
substitutes
aluminum
Superconducting transition temperature
transition temperature
Crystals
Aluminum Oxide
Crucibles
crucibles
Crystallization
Superconductivity
Crystal growth
Stoichiometry
Perovskite
cuprates
Superconducting materials
crystals
crystal growth
Copper

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Siegrist, T., Schneemeyer, L. F., Waszczak, J. V., Singh, N. P., Opila, R. L., Batlogg, B., ... Murphy, D. W. (1987). Aluminum substitution in Ba2YCu3O7. Physical Review B, 36(16), 8365-8368. https://doi.org/10.1103/PhysRevB.36.8365
Siegrist, T. ; Schneemeyer, L. F. ; Waszczak, J. V. ; Singh, N. P. ; Opila, R. L. ; Batlogg, B. ; Rupp, L. W. ; Murphy, D. W. / Aluminum substitution in Ba2YCu3O7. In: Physical Review B. 1987 ; Vol. 36, No. 16. pp. 8365-8368.
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Siegrist, T, Schneemeyer, LF, Waszczak, JV, Singh, NP, Opila, RL, Batlogg, B, Rupp, LW & Murphy, DW 1987, 'Aluminum substitution in Ba2YCu3O7', Physical Review B, vol. 36, no. 16, pp. 8365-8368. https://doi.org/10.1103/PhysRevB.36.8365

Aluminum substitution in Ba2YCu3O7. / Siegrist, T.; Schneemeyer, L. F.; Waszczak, J. V.; Singh, N. P.; Opila, R. L.; Batlogg, B.; Rupp, L. W.; Murphy, D. W.

In: Physical Review B, Vol. 36, No. 16, 01.01.1987, p. 8365-8368.

Research output: Contribution to journalArticle

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AU - Siegrist, T.

AU - Schneemeyer, L. F.

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AU - Singh, N. P.

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Siegrist T, Schneemeyer LF, Waszczak JV, Singh NP, Opila RL, Batlogg B et al. Aluminum substitution in Ba2YCu3O7. Physical Review B. 1987 Jan 1;36(16):8365-8368. https://doi.org/10.1103/PhysRevB.36.8365