Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure

Kwanpyo Kim, Sinisa Coh, Liang Z. Tan, William Regan, Jong Min Yuk, Eric Chatterjee, M. F. Crommie, Marvin L. Cohen, Steven G. Louie, A. Zettl

Research output: Contribution to journalArticle

332 Citations (Scopus)

Abstract

We present a systematic Raman study of unconventionally stacked double-layer graphene, and find that the spectrum strongly depends on the relative rotation angle between layers. Rotation-dependent trends in the position, width and intensity of graphene 2D and G peaks are experimentally established and accounted for theoretically. Our theoretical analysis reveals that changes in electronic band structure due to the interlayer interaction, such as rotational-angle dependent Van Hove singularities, are responsible for the observed spectral features. Our combined experimental and theoretical study provides a deeper understanding of the electronic band structure of rotated double-layer graphene, and leads to a practical way to identify and analyze rotation angles of misoriented double-layer graphene.

Original languageEnglish
Article number246103
JournalPhysical Review Letters
Volume108
Issue number24
DOIs
Publication statusPublished - 2012 Jun 14

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misalignment
graphene
Raman spectroscopy
electronic structure
trucks
electronics
interlayers
trends
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kim, Kwanpyo ; Coh, Sinisa ; Tan, Liang Z. ; Regan, William ; Yuk, Jong Min ; Chatterjee, Eric ; Crommie, M. F. ; Cohen, Marvin L. ; Louie, Steven G. ; Zettl, A. / Raman spectroscopy study of rotated double-layer graphene : Misorientation-angle dependence of electronic structure. In: Physical Review Letters. 2012 ; Vol. 108, No. 24.
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Kim, K, Coh, S, Tan, LZ, Regan, W, Yuk, JM, Chatterjee, E, Crommie, MF, Cohen, ML, Louie, SG & Zettl, A 2012, 'Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure', Physical Review Letters, vol. 108, no. 24, 246103. https://doi.org/10.1103/PhysRevLett.108.246103

Raman spectroscopy study of rotated double-layer graphene : Misorientation-angle dependence of electronic structure. / Kim, Kwanpyo; Coh, Sinisa; Tan, Liang Z.; Regan, William; Yuk, Jong Min; Chatterjee, Eric; Crommie, M. F.; Cohen, Marvin L.; Louie, Steven G.; Zettl, A.

In: Physical Review Letters, Vol. 108, No. 24, 246103, 14.06.2012.

Research output: Contribution to journalArticle

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AU - Kim, Kwanpyo

AU - Coh, Sinisa

AU - Tan, Liang Z.

AU - Regan, William

AU - Yuk, Jong Min

AU - Chatterjee, Eric

AU - Crommie, M. F.

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AU - Zettl, A.

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