Paramagnetism of copper–oxygen chains in high-temperature YBa2Cu3O6 + δ superconductors

Experimental evidence for the existence of chain paramagnetic Curie-type contributions to the temperature dependence of static magnetic susceptibility χ ( T ) in the normal (nonsuperconducting) state is obtained for a series of pure YBa 2 Cu 3 O 6 + δ high temperature superconductors with different...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2016-05, Vol.80 (5), p.504-507
Main Authors: Mamsurova, L. G., Trusevich, N. G., Pigalskiy, K. S., Vishnev, A. A., Mamsurov, I. V.
Format: Article
Language:English
Subjects:
Disorder
Hadrons
Heavy Ions
Nuclear Physics
Physics
Physics and Astronomy
Proceedings of the International Interdisciplinary Symposium “Ordering in Minerals and Alloys” OMA-17 and Proceedings of the International Interdisciplinary Symposium “Order
the Properties of Oxides” ODPO-17
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Summary:Experimental evidence for the existence of chain paramagnetic Curie-type contributions to the temperature dependence of static magnetic susceptibility χ ( T ) in the normal (nonsuperconducting) state is obtained for a series of pure YBa 2 Cu 3 O 6 + δ high temperature superconductors with different oxygen contents (0.6 < δ ≤ 1). It is shown that the chain contribution is obvious on χ ( T ) curves only in the T < 150K range of temperatures, grows along with the number of oxygen vacancies in Cu1–O4 chains, and depends on the ordering of these vacancies.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873816050129