Elemental process of the electron-lattice interaction in carbon nanomaterial
| Project/Area Number |
25400326
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
Maruyama Takahiro 名城大学, 理工学部, 教授 (30282338)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 電子格子相互作用 / グラフェン / 角度分解光電子分光 / シンクロトロン放射光 / フォノン分散 / 間接遷移 / フォノン / グラファイト / カーボンナノマテリアル / コインシデンス分光 / 高分解能電子エネルギー損失分光 |
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| Outline of Final Research Achievements |
The elemental process of the electron-lattice interaction is the electron transition as a result of the electron-phonon scattering. In this study, the process of the electron scattering by the phonon from the K-point to the neighborhood of the Gamma-point in the Brillouin zone of the graphite and single-layered graphene is, for the first time, observed by using the angle-resolved photoelectron spectroscopy in a way of resolving momentum and energy. Our finding is important because this reveals quantitatively the matrix element of the electron-phonon scattering which rules the electron-lattice interaction. Moreover, since the optical transition plays critical role in the whole process, we theoretically investigate the photoelectron excitation process in graphite and graphene.
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Report
(4 results)
Research Products
(40 results)
