A New Homologous Series of Superconducting Cuprates with the 22(n-1)n Structure, (Hg 1-x Tl x ) 2 Ba 2 Ca n-1 Cu n O y (x∼0.4, n = 3, 4)

A new homologous series of superconducting cuprates containing a mercury-based bilayer has been synthesized using a high-pressure, high-temperature technique. It is found that Tl doping stabilizes a bilayer block with the rock-salt structure i.e. (Hg 1- x Tl x ) 2 –O 2 . (Hg 1- x Tl x ) 2 Ba 2 Ca 2...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1996-02, Vol.35 (2B), p.L205
Main Authors: Tatsuki, Tadashi, Tokiwa-Yamamoto, Ayako, Fukuoka, Atsushi, Tamura, Toshiyuki, Wu, Xiao-Jing, Moriwaki, Yoshiyuki, Usami, Ryo, Adachi, Seiji, Keiichi Tanabe, Keiichi Tanabe, Shoji Tanaka, Shoji Tanaka
Format: Article
Language:English
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Summary:A new homologous series of superconducting cuprates containing a mercury-based bilayer has been synthesized using a high-pressure, high-temperature technique. It is found that Tl doping stabilizes a bilayer block with the rock-salt structure i.e. (Hg 1- x Tl x ) 2 –O 2 . (Hg 1- x Tl x ) 2 Ba 2 Ca 2 Cu 3 O y and (Hg 1- x Tl x ) 2 Ba 2 Ca 3 Cu 4 O y as-prepared samples with analized Tl contents of approximately 0.4 exhibited bulk superconductivity below 45 K and 114 K, respectively.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.35.L205