Volume 53, Issue 14 pp. 3599-3603
Communication

Superconducting Double Perovskite Bismuth Oxide Prepared by a Low-Temperature Hydrothermal Reaction

Mirza H. K. Rubel

Mirza H. K. Rubel

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Akira Miura

Prof. Akira Miura

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Takahiro Takei

Prof. Takahiro Takei

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Nobuhiro Kumada

Corresponding Author

Prof. Nobuhiro Kumada

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)Search for more papers by this author
M. Mozahar Ali

M. Mozahar Ali

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Masanori Nagao

Prof. Masanori Nagao

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Satoshi Watauchi

Prof. Satoshi Watauchi

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Isao Tanaka

Prof. Isao Tanaka

Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae Kofu 400-8511 (Japan)

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Prof. Kengo Oka

Prof. Kengo Oka

Materials and Structural laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku Yokohama-city, Kanagawa 226-8503 (Japan)

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Prof. Masaki Azuma

Prof. Masaki Azuma

Materials and Structural laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku Yokohama-city, Kanagawa 226-8503 (Japan)

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Prof. Eisuke Magome

Prof. Eisuke Magome

Department of Physical Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526 (Japan)

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Prof. Chikako Moriyoshi

Prof. Chikako Moriyoshi

Department of Physical Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526 (Japan)

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Prof. Yoshihiro Kuroiwa

Prof. Yoshihiro Kuroiwa

Department of Physical Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526 (Japan)

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Prof. A. K. M. Azharul Islam

Prof. A. K. M. Azharul Islam

Department of Physics, University of Rajshahi, Rajshahi-6205 (Bangladesh)

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First published: 26 February 2014
Citations: 62

Graphical Abstract

A double helping: The title compound was prepared by hydrothermal reaction of NaBiO3n H2O, Ba(OH)2⋅8 H2O, and KOH at 220 °C. The structure of the double perovskite was determined to be (Na0.25K0.45)(Ba1.00)3(Bi1.00)4O12, and thermally decomposed to a simple perovskite structure above 400 °C. The synthesized compounds exhibit superconductive diamagnetism, and zero resistivity below 8 K.

Abstract

Perovskite-type structures (ABO3) have received significant attention because of their crystallographic aspects and physical properties, but there has been no clear evidence of a superconductor with a double-perovskite-type structure, whose different elements occupy A and/or B sites in ordered ways. In this report, hydrothermal synthesis at 220 °C produced a new superconductor with an A-site-ordered double perovskite structure, (Na0.25K0.45)(Ba1.00)3(Bi1.00)4O12, with a maximum Tc  of about 27 K.

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