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Enhancement of Seebeck coefficient for SrO(SrTiO_3)2 by Sm substitution: Crystal symmetry restoration of distorted TiO_6 octahedra
http://hdl.handle.net/2237/11974
http://hdl.handle.net/2237/1197421b1801a-db79-447f-9afb-d599fbee6a95
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-07-28 | |||||
タイトル | ||||||
タイトル | Enhancement of Seebeck coefficient for SrO(SrTiO_3)2 by Sm substitution: Crystal symmetry restoration of distorted TiO_6 octahedra | |||||
言語 | en | |||||
著者 |
Wang, Yifeng
× Wang, Yifeng× Lee, Kyu Hyoung× Hyuga, Hideki× Kita, Hideki× Inaba, Katsuhiko× Ohta, Hiromichi× 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 (2007) 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 | We found that Sm^3+ substitution in SrO(SrTiO_3)_2 is effective in improving the Seebeck coefficient (S). The |S| value increases notably with temperature, benefiting from an enhancement of the density of states (DOS) effective mass m_d from 〰3m_0 (300 K) to 〰7.5m_0 (1000 K), due to an improvement of the local symmetry of TiO_6 octahedra, enhancing the degeneracy in the Ti 3d orbitals, which form the conduction band (CB), and also to an accompanying lattice expansion, which gives rise to a higher DOS at the bottom of the CB and, consequently, a larger m_d. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Institite of Physics | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
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/10.1063/1.2820447 | |||||
ISSN | ||||||
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 91, 号 24, p. 242102-242102, 発行日 2007-12-10 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1063/1.2820447 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/11974 | |||||
識別子タイプ | HDL |