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- Title
Superconductivity in single crystals of the nonperovskite-like cuprate Ba[sub 2]Cu[sub 3]O[sub 6-x].
- Authors
Moshkin, S. V.; Goloshchapov, S. I.; Frank-Kamenetskaya, O. V.; Bannova, I. I.; Ivanova, T. I.; Kaminskaya, T. N.; Kuz’mina, M. A.; Vlasov, M. Yu.
- Abstract
Spontaneous crystallization from a solution in a melt at a pressure of (0.8-1) × 10[sup -3] Pa was used to obtain single crystals of a new nonperovskite-like superconducting phase Ba[sub 2]Cu[sub 3]O[sub 6 - x] (space group P[sub ccm], a = 13.065, b = 20.654, and c = 11.431 Å). The superconducting properties of the crystals were investigated by modulated microwave absorption. The superconducting transition temperatures were 5 K (sample No. 1), 7 K and 13 K (sample No. 2). The superconductivity in the Ba[sub 2]Cu[sub 3]O[sub 6 - x] crystals is attributed to the presence of CuO[sub 2] chains of edge-sharing copper-oxygen squares. Nonperovskite-like Ba[sub 2]Cu[sub 3]O[sub 6 - x] crystals are a new class of one-dimensional (1D) superconductors.
- Subjects
SUPERCONDUCTIVITY; CRYSTALS; MICROWAVES
- Publication
Technical Physics Letters, 1997, Vol 23, Issue 12, p954
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/1.1261945