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Applied Physics 2024
二维耦合无序体系量子扩散的周期性振荡
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Abstract:
本文首先介绍了二维材料与耦合机制,随后基于紧束缚近似理论研究二维耦合无序量子扩散现象,运用解析及数值的方法证实了二维耦合体系横向及纵向传播中的同步量子扩散周期性振荡。研究表明:双层无序石墨烯体系周期性振荡对无序度承受能力相对双层无序四方晶格体系更强。边界无序体系周期性振荡任意无序度下均存在。当无序仅处于系统边界, , 振荡在波包到达边界后开始以 , 或
[1] | Geim, A.K. and Novoselov, K.S. (2007) The Rise of Graphene. Nature Materials, 6, 183-191. https://doi.org/10.1038/nmat1849 |
[2] | Wang, X., Zhi, L. and Müllen, K. (2007) Transparent, Conductive Graphene Electrodes for Dye-Sensitized Solar Cells. Nano Letters, 8, 323-327. https://doi.org/10.1021/nl072838r |
[3] | Liu, H., Venugopal, A. and Wang, K.L. (2014) Photodetectors Based on Black Phosphorus. Applied Physics Letters, 105, Article ID: 053118. |
[4] | Xia, F., Wang, H. and Wang, H. (2014) Black Phosphorus Field-Effect Transistors. Nature Nanotechnology, 9, 845-852. |
[5] | Mak, K.F., Lee, C., Hone, J., Shan, J. and Heinz, T.F. (2010) Atomically Thin MoS2: A New Direct-Gap Semiconductor. Physical Review Letters, 105, Article ID: 136805. https://doi.org/10.1103/physrevlett.105.136805 |
[6] | Mak, K.F., Lee, C., Hone, J., Shan, J. and Heinz, T.F. (2010) Atomically Thin MoS2: A New Direct-Gap Semiconductor. Physical Review Letters, 105, Article ID: 136805. https://doi.org/10.1103/physrevlett.105.136805 |
[7] | Zhang, Y., et al. (2016) MoS₂ and Its Heterostructures: From Fundamental Studies to Applications. Nature Reviews Materials, 1, Article ID: 15019. |
[8] | Wang, H., et al. (2019) Two-Dimensional Materials: From Fundamental Properties to Device Applications. Science Advances, 5, eaav2515. |
[9] | Liu, C., et al. (2018) Tuning the Bandgap of Few-Layer MoS₂ by Interlayer Coupling. Nanoscale Horizons, 3, 577-583. |
[10] | Akinwande, D., et al. (2019) A Review on Mechanical Properties of 2D Materials. Nature Reviews Materials, 4, 510-522. |
[11] | Chiu, M.H., et al. (2017) Optical Properties of Two-Dimensional Materials. Nature Reviews Physics, 1, 85-100. |
[12] | Zhong, J.X. and Mosseri, R. (1995) Wave Packet Dynamics in a Moiré Superlattice. Journal of Physics: Condensed Matter, 7, 8383-8392. |
[13] | Moon, P. and Koshino, M. (2013) Optical Properties of the Hofstadter Butterfly in the Moiré Superlattice. Physical Review B, 88, Article ID: 241412. https://doi.org/10.1103/physrevb.88.241412 |
[14] | Moon, P., Koshino, M. and Son, Y.W. (2019) Rotated Twisted Bilayer Graphene. Physical Review B, 99, 19545. |
[15] | Zhong, J.X. and Stocks, G.M. (2006) Quantum Diffusion in Disordered Systems. Nano Letters, 6, 128-132. |