The thermoelectric properties of have been investigated using prismatic single crystals elongated along the axis. has a pseudo-one-dimensional structure similar to that of 2H perovskite-type and contains octahedral columns running parallel to the axis. The prismatic crystals are grown by a flux method using a flux. The electrical conductivity along the columns ( axis) exhibits a metallic behavior ( in the temperature range of 300–1100 K), whereas the temperature dependence of the electrical conductivity perpendicular to the axis is semiconducting. The Seebeck coefficient along the columns is positive and greater than over the measured temperature range . shows power factors of above room temperature, relatively high values for an oxide material.
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1 August 2009
Research Article|
August 06 2009
Thermoelectric properties of containing one-dimensional octahedral columns
Kouta Iwasaki;
Kouta Iwasaki
a)
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Teruhisa Yamamoto;
Teruhisa Yamamoto
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Hisanori Yamane;
Hisanori Yamane
2Institute of Multidisciplinary Research for Advanced Materials,
Tohoku University
, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Takashi Takeda;
Takashi Takeda
3
National Institute for Materials Science (NIMS)
, 1-1 Namiki, Tsukuba 305-0044, Japan
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Shigeo Arai;
Shigeo Arai
4EcoTopia Science Institute,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Hidetoshi Miyazaki;
Hidetoshi Miyazaki
5UVSOR Facility,
Institute for Molecular Science
, Okazaki 444-8585, Japan
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Kazuyoshi Tatsumi;
Kazuyoshi Tatsumi
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Masahito Yoshino;
Masahito Yoshino
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Tsuyoshi Ito;
Tsuyoshi Ito
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Yuji Arita;
Yuji Arita
4EcoTopia Science Institute,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Shunsuke Muto;
Shunsuke Muto
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Takanori Nagasaki;
Takanori Nagasaki
4EcoTopia Science Institute,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Tsuneo Matsui
Tsuneo Matsui
1Department of Materials, Physics and Energy Engineering, Graduate School of Engineering,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
4EcoTopia Science Institute,
Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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a)
Author to whom correspondence should be addressed. Tel.: +81-52-789-4689. FAX: +81-52-789-3779. Electronic mail: k-iwasaki@nucl.nagoya-u.ac.jp.
J. Appl. Phys. 106, 034905 (2009)
Article history
Received:
April 17 2009
Accepted:
June 10 2009
Citation
Kouta Iwasaki, Teruhisa Yamamoto, Hisanori Yamane, Takashi Takeda, Shigeo Arai, Hidetoshi Miyazaki, Kazuyoshi Tatsumi, Masahito Yoshino, Tsuyoshi Ito, Yuji Arita, Shunsuke Muto, Takanori Nagasaki, Tsuneo Matsui; Thermoelectric properties of containing one-dimensional octahedral columns. J. Appl. Phys. 1 August 2009; 106 (3): 034905. https://doi.org/10.1063/1.3174428
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