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Title: Direct observation of inner and outer Gʹ band double-resonance Raman scattering in free standing graphene
Authors: Luo, Zhiqiang
Cong, Chunxiao
Zhang, Jun
Xiong, Qihua
Yu, Ting
Keywords: DRNTU::Science::Physics
Issue Date: 2012
Source: Luo, Z., Cong, C., Zhang, J., Xiong, Q., & Yu, T. (2012). Direct observation of inner and outer Gʹ band double-resonance Raman scattering in free standing graphene. Applied Physics Letters, 100(24), 243107-.
Series/Report no.: Applied physics letters
Abstract: In contrary to the widely reported single and symmetric peak feature of G′ band in Raman spectrum of graphene, we herein report the observation of splitting in G′ band in free standing graphene. Our experimental findings provide a direct and strong support for the previous theoretical prediction that the coexistence of the outer and inner processes in the double-resonance Raman scattering would cause the splitting of G′ mode. The investigation of the influence of trigonal warping effect on the spectral features of G′ subbands further verified the theoretical interpretation established on the anisotropic electronic structure of graphene.
ISSN: 0003-6951
DOI: 10.1063/1.4729407
Rights: © 2012 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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