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Superconducting properties of the lithium-substituted YBa2Cu4O8prepared by the sol-gel method

✍ Scribed by S. Fujihara; H. Kozuka; T. Yoko

Publisher
Springer
Year
1996
Tongue
English
Weight
440 KB
Volume
31
Category
Article
ISSN
0022-2461

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✦ Synopsis

The effects of the lithium substitution for copper on the properties of the superconducting YBa2Cu408 were studied. Single-phase YBa2Cu4-xLixO8 was successfully prepared by the sol-gel method under ambient pressure over a composition range of 0 ~< x~< 0.08, while impurity phases appeared at x=0.10 and 0.20. The lattice constants of YBa2Cu4-xLixO8 were almost invariant with increasing lithium content x. The superconducting transition temperature decreased monotonically with increasing xin the range, 0 ~< x~< 0.08. The suppression of superconductivity was discussed in terms of the impurity effect in the CuQ2 planes.

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