Please use this identifier to cite or link to this item:
|Title:||Zone folding effect in Raman G-band intensity of twisted bilayer graphene||Authors:||Sato, K.
|Issue Date:||7-Sep-2012||Citation:||Sato, K., Saito, R., Cong, C., Yu, T., Dresselhaus, M.S. (2012-09-07). Zone folding effect in Raman G-band intensity of twisted bilayer graphene. Physical Review B - Condensed Matter and Materials Physics 86 (12) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.86.125414||Abstract:||The G-band Raman intensity is calculated for twisted bilayer graphene as a function of laser excitation energy based on the extended tight binding method. Here we explicitly consider the electron-photon and electron-phonon matrix elements of twisted bilayer graphene to calculate the resonance Raman intensity. The G-band Raman intensity is sensitive to the laser excitation energy and the twisting angle between the layers as a result of folding the electronic energy band structure. The Van Hove energy singularity, which is an electron transition energy between the conduction and valence bands, depends on n-m of the twisting vector (n,m). The relative intensity of the G band as a function of twisting vectors is presented, which should be useful for the experimental identification of the twisting angle. © 2012 American Physical Society.||Source Title:||Physical Review B - Condensed Matter and Materials Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/98620||ISSN:||10980121||DOI:||10.1103/PhysRevB.86.125414|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 19, 2019
WEB OF SCIENCETM
checked on Apr 29, 2019
checked on May 13, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.