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Electron-phonon coupling and defect scatterings in Ar⁺-ion implanted graphite
http://hdl.handle.net/10131/8579
http://hdl.handle.net/10131/857973daa95b-995b-46df-9c71-f8c33be64db8
名前 / ファイル | ライセンス | アクション |
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JCSJ_121_291.pdf (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-05-26 | |||||
タイトル | ||||||
タイトル | Electron-phonon coupling and defect scatterings in Ar⁺-ion implanted graphite | |||||
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 | |||||
著者 |
Katayama, Ikufumi
× Katayama, Ikufumi× Koga, Sho× Takeda, Jun× Hishita, Shunichi× Fujita, Daisuke× Kitajima, Masahiro |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19618 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=80432532 | |||||
識別子 | 80432532 | |||||
姓名 | カタヤマ, イクフミ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19015 | |||||
姓名 | コガ, ショウ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 9 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=60202165 | |||||
識別子 | 60202165 | |||||
姓名 | タケダ, ジュン | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19017 | |||||
姓名 | ヒシタ, シュンイチ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19018 | |||||
姓名 | フジタ, ダイスケ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19019 | |||||
姓名 | キタジマ, マサヒロ | |||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Optical and Electronic Materials Unit, National Institute for Materials Science | ||||||
著者所属 | ||||||
Nano Characterization Unit, National Institute for Materials Science | ||||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Dynamics of coherent G-mode and D-mode phonons in Ar⁺-ion implanted graphite has been investigated using transient reflectivity measurement. With an increase in the Ar⁺-ion dose, coherent D-mode phonon appears at which the dephasing rate of the coherent G-mode phonon begins to increase. The increase in the amplitude of the coherent D-mode phonon and those in dephasing rates of the coherent D-mode and G-mode phonons indicate effective carrier-defect scatterings in the defective graphite. The dephasing rate of the D-mode is larger than that of the G-mode, indicating an existence of an additional dephasing process for the D-mode. We attribute it to the broad spectral distribution of the D-mode phonon, which is understood as a coherent excitation of large wavevector phonons with different wavevectors through inter-Dirac-cone scattering. The frequency chirping of the D-mode and its defect density dependence are also discussed based on this scattering mechanism. | |||||
書誌情報 |
Journal of the ceramic society of Japan 巻 121, 号 1411, 発行日 2013-03 |
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書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11556832 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |