| 研究生: |
陳彥廷 Chen, Yen-Ting |
|---|---|
| 論文名稱: |
ABC堆疊石墨烯在不同費米能階下的庫倫激發性質 Coulomb Excitation in the doped ABC-stacked Graphene |
| 指導教授: |
林明發
Lin, Ming-Fa |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 物理學系 Department of Physics |
| 論文出版年: | 2017 |
| 畢業學年度: | 106 |
| 語文別: | 英文 |
| 論文頁數: | 43 |
| 中文關鍵詞: | 石墨烯 、緊束模型 、費米能階 、電漿子 |
| 外文關鍵詞: | tight-binding model, ABC-stacked graphene, band structure, Plasmon |
| 相關次數: | 點閱:91 下載:0 |
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2004年科學家首次在實驗室成功的從石墨中分離出石墨烯,並證實它可以單獨存在,且其獨特的能帶以及電學性質在各個領域皆有著非常大的應用前景。而我們感興趣的是在不同的調控之下(例如:外加電場,外加磁場,參雜等),石墨烯內部電子反應所產生的豐富電子性質。
此篇文章中,我們以緊束模型(Tight Binding Model)來探討單層、AA與ABC堆疊的石墨烯,討論其能帶特色、庫倫激發性質以及不同層間電子的交互作用。在完整分析後,我們調整費米能階的大小,觀察其損失函數(Loss Function)依照不同費米能所產生的變化,探討其產生之電漿子與費米能階的相關性。並討論因AA與ABC能帶結構的不同,進而產生的不同電子激發特性與不同的電漿子特性。
We use tight-binding model to explore the electric properties of ABC-stacked trilayer graphene. These rich electric properties are greatly related to the interlayer atomic interactions, the Fermi energy and the transferred momentum. The band structures of ABC-stacked trilayer graphene own a pair of partially flat and a pair of sombrero-shaped bands. These special band structures induce rich electric properties with the Coulomb excitation. The sombrero-shaped bands induce the abnormal declining plasmon with a specific range of Fermi energy. Plasmons merge together and behave like monolayer graphene when Fermi energy is sufficiently high.
Reference:
[1]P. R. Wallace, J. Phys. 71, 622 (1947)
[2]J. H. Ho, Y. H. Lai, Y. H. Chiu, and M. F. Lin, Nanotechnology 19, 035712(6) (2008).
[3]J. H. Ho, C. L. Lu, C. C. Hwang, C. P. Chang, and M. F. Lin, Phys. Rev. B 74, 085406(8) (2006).
[4]J. H. Ho, Y. H. Lai and M. F. Lin, Bulletin of American Physical Society, Vol. 52 (2007).
[5]J. H. Ho, C. P. Chang, and M. F. Lin, Phys. Lett. A 352, 446-450 (2006).
[6]C. W. Chiu, S. H. Lee, S. C. Chen, and M. F. Lin, J. Appl. Phys. 106, 113711(6) (2009).
[7]C. L. Lu, C. P. Chang, and M. F. Lin, Eur. Phys. J. B 60, 161-169 (2007).
[8]C. L. Lu, C. P. Chang, Y. C. Huang, J. H. Ho, C. C. Hwang, and M. F. Lin, J. Phys. Soc. Jpn. 76, 024701(7) (2007).
[9]K. S. Kim, Y, Zhao, H Jang, S. Y. Lee, J.M. Kim, K.S. Kim, J.-H. P. Kim, J.-Y. Choi, and B. H. Hong, Nature 457, 706 (2009).
[10]F. Zhang, B Sahu, H. Min, and A. H. MacDonald, Phys. Rev. B 82, 035409 (2010).
[11]C. W. Chiu, S. H. Lee, F. L. Shyu, and M. F. Lin, New J. Phys. 12, 083060(13) (2010).
[12]C. L. Lu and M. F. Lin, 3rd Workshop on Low-Dimensional Systems and Nanomaterials (2006, April).
[13]M. F. Lin, C. S. Huang, and D. S. Chu, Phys. Rev. B 55, 13961-13971 (1997).
[14]M. F. Lin, and F. L. Shyu, J. Phys. Soc. Jpn. 69, 607-610 (2000).
[15]M. F. Lin, and F. L. Shyu, Physica B, 117-126 (2000).
[16]F. L. Shyu and M. F. Lin, J. Phys. Soc. Jpn. 69, 3781-3784 (Letter; 2000).
校內:2022-12-01公開