Graphene phonon softening and splitting by directional straining

• Main Authors: Yang, X. X., Wang, Y., Li, J. W., Liao, W. H., Liu, Y. H., Sun, Chang Qing
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2015
• 主題: Phonons; Graphene; Strain measurement; Chemical bonds; Diamond
• 在線閱讀: https://hdl.handle.net/10356/80981; http://hdl.handle.net/10220/39016
• 機構: Nanyang Technological University

Strain-induced graphenephonon softening and phonon band splitting are indeed fascinating, which were attributed to the phonon double resonant scattering without intrinsic involvement of C-C bond relaxation. Here, we show that the lengthening and weakening of the C-C bond softens the phonon and that...