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Thermoelectrical properties of A-site substituted Ca1_x Rex MnO3 system
http://hdl.handle.net/2237/8772
http://hdl.handle.net/2237/87728a408d3e-587a-4dfb-81ef-245535c6094d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JourAppPhys_100-84911.pdf (158.6 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2007-09-21 | |||||
| タイトル | ||||||
| タイトル | Thermoelectrical properties of A-site substituted Ca1_x Rex MnO3 system | |||||
| 言語 | en | |||||
| 著者 |
Flahaut, D.
× Flahaut, D.× Mihara, T.× Funahashi, R.× Nabeshima, N.× Lee, K.× Ohta, H.× Koumoto, K. |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | CaMnO3 is an electron-doped compound which belongs to the perovskite family. Despite its high Seebeck coefficient S value, the figure of merit at high temperature remains low due to its large resistivity ρ(ρ300 K=2 Ω cm). To optimize the performance of this material in terms of thermoelectric properties, several substitutions have been attempted on the Ca site to decrease the ρ. Structure and thermoelectric properties of polycrystalline samples Ca1−xAxMnO3 (A=Yb, Tb, Nd, and Ho) have been investigated. Although ρ strongly depends on the ionic radius <rA> and carrier concentration, we have shown that the thermal conductivity κ is mainly driven by the atomic weight of the A site and decreases with it. Therefore, it seems that the S, ρ, and κ could be controlled separately. For instance, the highest dimensionless ZT (=0.16) has been obtained at 1000 K in the air for Ca0.9Yb0.1MnO3. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | American Institute of Physics | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/1.2362922 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0021-8979 | |||||
| 書誌情報 |
en : JOURNAL OF APPLIED PHYSICS 巻 100, 号 8, p. 084911-084911, 発行日 2006-10-15 |
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| フォーマット | ||||||
| 値 | application/pdf | |||||
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| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/8772 | |||||
| 識別子タイプ | HDL | |||||
