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High electrical conductivity of layered cobalt oxide Ca_3Co_4O_9 epitaxial films grown by topotactic ion-exchange method
http://hdl.handle.net/2237/7021
http://hdl.handle.net/2237/70212ce8166b-f77f-4b7e-99e5-67693ab1e34e
名前 / ファイル | ライセンス | アクション |
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ApplPhysLett_89_032111.pdf (260.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2006-10-23 | |||||
タイトル | ||||||
タイトル | High electrical conductivity of layered cobalt oxide Ca_3Co_4O_9 epitaxial films grown by topotactic ion-exchange method | |||||
言語 | en | |||||
著者 |
Sugiura, Kenji
× Sugiura, Kenji× Ohta, Hiromichi× Nomura, Kenji× Hirano, Masahiro× Hosono, Hideo× Koumoto, Kunihito |
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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. | |||||
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内容記述タイプ | Abstract | |||||
内容記述 | Epitaxial film of a layered cobalt oxide, Ca_3Co_4O_9, was fabricated on a (0001) face of an α-Al_2O_3 substrate by a topotactic ion-exchange method using a γ-Na_0.8CoO_2 epitaxial film as a precursor. High-resolution x-ray diffraction and atomic force microscope measurements revealed that the film was high-quality (001)-oriented Ca_3Co_4O_9 with stepped and terraced surface morphology. The film exhibits a high electrical conductivity of 2.95*10^2 S cm^-1 and a large Seebeck coefficient of ~ +125 μVK^-1, which leads to the thermoelectric power factor (TPF) of 4.5*10^-4 Wm^-1 K^-2 at 300 K, potentially usable as a building block of the multilayered film structure with an enhanced TPF value. | |||||
言語 | en | |||||
出版者 | ||||||
出版者 | American Institute of Physics | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
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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/10.1063/1.2234277 | |||||
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収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0003-6951 | |||||
書誌情報 |
en : Applied Physics Letters 巻 89, 号 3, p. 032111-032111, 発行日 2006-01-17 |
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値 | application/pdf | |||||
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値 | publisher | |||||
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識別子 | http://hdl.handle.net/2237/7021 | |||||
識別子タイプ | HDL |