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Raman Scattering Investigation of Structural Transition in Ca5Ir3O12
http://hdl.handle.net/10228/00008164
http://hdl.handle.net/10228/0000816435cf50d0-caee-416a-bc6c-f6611e8507c1
名前 / ファイル | ライセンス | アクション |
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iENERON-2020_74.pdf (2.9 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2021-04-09 | |||||||||||||||||
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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 | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | en | |||||||||||||||||
タイトル | Raman Scattering Investigation of Structural Transition in Ca5Ir3O12 | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
Hasegawa, Takumi
× Hasegawa, Takumi× Yoshida, Wataru× 中村, 和磨
WEKO
20202
× Ogita, Norio× 松平, 和之
WEKO
20843
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | We report a study of the second-order phase transition at 105 K in the geometrically frustrated iridate Ca5Ir3O12 using a Raman scattering method. The Raman scattering spectra of a single crystal were measured from 4 K to room temperature. Ab initio phonon calculations that consider the spin–orbit interaction were also conducted and compared with the experimental spectra. Agreement between the theoretical and experimental results at room temperature is reasonably good. At room temperature, 6A'1+9E'+5E'' were assigned among the Raman active modes, 6A'1+13E'+6E'', based on the reported P6¯2m crystal structure. Below Ts, 23 additional peaks were observed, suggesting the appearance of a superlattice structure. The polarization dependence of Raman spectra below Ts indicates the existence of 6¯ symmetry. We observed at least one additional mode as a broad weak-intensity peak at temperatures higher than Ts. This suggests possible local distortion around the Ir ions, which would be expected for Ir ions with mixed valence states. | |||||||||||||||||
言語 | en | |||||||||||||||||
書誌情報 |
en : Journal of the Physical Society of Japan 巻 89, 号 5, p. 053602-1-053602-11, 発行日 2020-04-09 |
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言語 | ja | |||||||||||||||||
出版者 | 日本物理学会 | |||||||||||||||||
DOI | ||||||||||||||||||
関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | https://doi.org/10.7566/JPSJ.89.054602 | |||||||||||||||||
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関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | URI | |||||||||||||||||
関連識別子 | https://cir.nii.ac.jp/crid/1050569148805259136 | |||||||||||||||||
日本十進分類法 | ||||||||||||||||||
主題Scheme | NDC | |||||||||||||||||
主題 | 425 | |||||||||||||||||
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収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA00704814 | |||||||||||||||||
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収録物識別子タイプ | EISSN | |||||||||||||||||
収録物識別子 | 1347-4073 | |||||||||||||||||
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収録物識別子タイプ | PISSN | |||||||||||||||||
収録物識別子 | 0031-9015 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2020 The Physical Society of Japan | |||||||||||||||||
出版タイプ | ||||||||||||||||||
出版タイプ | AM | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
査読の有無 | ||||||||||||||||||
値 | yes | |||||||||||||||||
研究者情報 | ||||||||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/82_ja.html | ||||||||||||||||||
論文ID(連携) | ||||||||||||||||||
10352610 | ||||||||||||||||||
連携ID | ||||||||||||||||||
8216 |