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Cluster calculations on the electronic structures of the high-temperature superconductors Y1Ba2Cu4OX(x=7.5, 8.0, 8.5) and Y1Ba2Cu5O9

✍ Scribed by A. I. Ermakov; A. V. Vishnyakov


Publisher
SP MAIK Nauka/Interperiodica
Year
1993
Tongue
English
Weight
637 KB
Volume
33
Category
Article
ISSN
0022-4766

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The Effect of Ca Doping on the Structure
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The transition temperature of \(\mathrm{YBa}_{2} \mathrm{Cu}_{4} \mathrm{O}_{8}(124)\) is increased by about \(10 \mathrm{~K}\) by doping with calcium, whereas Ca substitution in \(\mathrm{Y}_{2} \mathrm{Ba}_{4} \mathrm{Cu}_{7} \mathrm{O}_{14+x}\) (247) has no effect on \(T_{\mathrm{c}}\). X-ray str