Single crystals of HgBa sub(2)Ca sub(n-1)Cu sub(n)O sub(x) and chain compounds A sub(1-x)CuO sub(2) (A identical with Sr, Ca, Ba), high pressure synthesis and properties

High gas pressure up to 11 kbar has been applied for the synthesis and single crystal growth of Hg-based superconductors and one-dimensional A sub(1-x)CuO sub(2) cuprates. We have investigated the influence of Re, Sr and Pb substitutions and oxygen content on the magnetic flux-pinning properties of...

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Bibliographic Details
Published in:Journal of low temperature physics 1999-01, Vol.117 (3), p.735-739
Main Authors: Karpinski, J, Angst, M, Meijer, GI, Kazakov, S, Schwer, H, Wisniewski, A, Puzniak, R
Format: Article
Language:English
Subjects:
Crystal growth
High pressure effects
Magnetic susceptibility
Neutron scattering
Substitution reactions
Synthesis (chemical)
Torque
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Summary:High gas pressure up to 11 kbar has been applied for the synthesis and single crystal growth of Hg-based superconductors and one-dimensional A sub(1-x)CuO sub(2) cuprates. We have investigated the influence of Re, Sr and Pb substitutions and oxygen content on the magnetic flux-pinning properties of single crystals of Hg-based superconductors. The best results have been obtained for Sr and Pb substituted Hg 1223 single crystals. Susceptibility, neutron scattering, and torque investigations have been performed on Ca sub(0.83)CuO sub(2), Sr sub(0.73)CuO sub(2) and Ba sub(0.67)CuO sub(2) compounds containing CuO sub(2) infinite chains separated by Ca, Sr or Ba layers.
ISSN:0022-2291