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Coherent nanoscale optical-phonon wave packet in graphene layers
http://hdl.handle.net/10131/8582
http://hdl.handle.net/10131/858298e38c6f-271d-4bac-b51b-fc67c2a5658b
名前 / ファイル | ライセンス | アクション |
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PhysRevB.88.245406.pdf (1.2 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 | Coherent nanoscale optical-phonon wave packet in graphene layers | |||||
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, I
× Katayama, I× Sato, K× Takeda, J× Hishita, S× Fukidome, H× Suemitsu, M× Kitajima, M |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19047 | |||||
姓名 | カタヤマ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19048 | |||||
姓名 | サトウ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19049 | |||||
姓名 | タケダ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19050 | |||||
姓名 | ヒシタ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19051 | |||||
姓名 | フキドメ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19052 | |||||
姓名 | スエミツ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19053 | |||||
姓名 | キタジマ | |||||
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 | ||||||
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 | ||||||
Research Institute of Electrical Communication, Tohoku University | ||||||
著者所属 | ||||||
Research Institute of Electrical Communication, Tohoku University | ||||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University : LxRay Co. Ltd. : Department of Applied Physics, National Defense Academy | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Coherent large-wave-vector phonons in graphene layers were excited by using a 7.5-fs ultrashort laser,and observed by wavelength-resolved pump-probe transient reflectivity spectroscopy. Inter-Dirac-cone electronscattering mediated by edges and defects in graphene layers drives large-wave-vector coherent D-mode phononsnear the Dirac point (K point) of the Brillouin zone. In contrast to the normal coherent phonons generated withfirst-order Raman process, phonon chirp is observed, and amplitude and frequency strongly change dependingon the probed wavelength. The results are discussed on the basis of doubly resonant Raman scattering process,demonstrating that generatedD-mode coherent phonons can propagate as nanoscale optical-phononwave packets. | |||||
書誌情報 |
Physical Review B 巻 88, 号 24, 発行日 2013-12-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10980121 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11187113 | |||||
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 |