Item type |
itemtype_ver1(1) |
公開日 |
2023-06-12 |
タイトル |
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タイトル |
Thermal conduction in titanium-chromium oxide natural superlattices with an ordered arrangement of nearly pristine interfaces |
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言語 |
en |
著者 |
Sugimoto, Shunya
Kim, Gareoung
Takeuchi, Tsunehiro
Tagawa, Miho
Ujihara, Toru
Harada, Shunta
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アクセス権 |
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アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
権利 |
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言語 |
en |
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権利情報 |
© 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
キーワード |
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主題Scheme |
Other |
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主題 |
Coherent thermal transport |
キーワード |
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主題Scheme |
Other |
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主題 |
Natural superlattice |
キーワード |
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主題Scheme |
Other |
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主題 |
Crystallographic shear structure |
キーワード |
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主題Scheme |
Other |
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主題 |
Thermal conductivity |
内容記述 |
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内容記述 |
Thermal conduction was investigated in titanium-chromium oxide natural superlattices with an ordered arrangement of crystallographic shear planes, which were nearly pristine interfaces for thermal phonons. Thermal conductivity exhibited a clear maximum value at around 50 K, which indicates interface roughness as small as 20 pm based on the calculation of thermal conductivity by a modified Debye-Callaway model. With an ordered arrangement of nearly pristine interfaces at nanoscale, the wave contribution to phonon transport was estimated to be predominant at lower temperatures (less than 100 K) and as much as 30 % even at room temperature. We found that the interface roughness greatly influences the thermal conduction in natural superlattice systems, which may lead to variations in the reported value of thermal conductivity. We have demonstrated that the wave contribution of thermal conductivity become apparent in bulk crystal having nano scale periodic structure with pristine interfaces. |
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言語 |
en |
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内容記述タイプ |
Abstract |
出版者 |
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言語 |
en |
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出版者 |
Elsevier |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.jallcom.2022.167915 |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0925-8388 |
書誌情報 |
en : Journal of Alloys and Compounds
巻 934,
p. 167915,
発行日 2023-02-10
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ファイル公開日 |
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日付 |
2025-02-10 |
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日付タイプ |
Available |