Abstract
In 1994, a new high temperature superconducting family was discovered in the Ba-Ca-Cu-O system [1–3]. Subsequently, the presence of carbon forming CO3 groups was detected by high resolution electron microscopy [4], and confirmed from EELS measurements [5]. The general formula Cul−yCyBa2Can−1CunOx was thus proposed for this family. The samples are prepared at high temperature (≈ 1000°C) and under high pressure (≈ 8GPa) generated in a belt-type apparatus. Members with n=3 to 6 have been observed by electron diffraction, but only the n=3 and n=4 members are obtained as bulk phases.
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© 1997 Springer Science+Business Media Dordrecht
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Gautier, E., Tranqui, D., Chaillout, C. (1997). First Steps in the Structure Determination of an Oxycarbonate Superconductor from Electron Diffraction Intensities. In: Dorset, D.L., Hovmöller, S., Zou, X. (eds) Electron Crystallography. NATO ASI Series, vol 347. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8971-0_35
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DOI: https://doi.org/10.1007/978-94-015-8971-0_35
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