Graphene phonon softening and splitting by directional straining

• المؤلفون الرئيسيون: Yang, X. X., Wang, Y., Li, J. W., Liao, W. H., Liu, Y. H., Sun, Chang Qing
• مؤلفون آخرون: School of Electrical and Electronic Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2015
• الموضوعات: Phonons; Graphene; Strain measurement; Chemical bonds; Diamond
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/80981; http://hdl.handle.net/10220/39016
• المؤسسة: 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...