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Synthesis and Characterization of a New Layered Cuprate In2Ba2CuO6−δ

✍ Scribed by T. Kijima; H. Sushida; T. Noguchi; M. Yada; Masato Machida

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
271 KB
Volume
131
Category
Article
ISSN
0022-4596

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✦ Synopsis

A new cuprate with the composition In 2 Ba 2 CuO 6؊ ( ‫؍‬ 0.1) has been synthesized in the temperature range 890-910°C in air. The cuprate crystallizes in an orthorhombic cell with the lattice parameters of a ‫؍‬ 5.545, b ‫؍‬ 5.425, and c ‫؍‬ 24.46 A s . The resistivity of the cuprate at room temperature is as high as 8.1 M cm. Chemical analysis and XPS data show that the indium-based cuprate contains 1.5 mol% of oxygen vacancies, probably located in the CuO 2 planes, which would lead to the high resistivity.

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