Acoustic and breathing phonon modes in bilayer graphene with Moiré patterns

Jin Wu Jiang, Bing Shen Wang, Timon Rabczuk

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The lattice dynamics properties are investigated for twisting bilayer graphene. There are big jumps for the inter-layer potential at twisting angle θ 0 ° and 60°, implying the stability of Bernal-stacking and the instability of AA-stacking structures, while a long platform in [8,55]° indicates the ease of twisting bilayer graphene in this wide angle range. Significant frequency shifts are observed for the z breathing mode around θ 0 ° and 60°, while the frequency is a constant in a wide range [8,55]°. Using the z breathing mode, a mechanical nanoresonator is proposed to operate on a robust resonant frequency in terahertz range.

Original languageEnglish
Article number023113
JournalApplied Physics Letters
Volume101
Issue number2
DOIs
Publication statusPublished - 2012 Jul 9
Externally publishedYes

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twisting
breathing
graphene
acoustics
dynamic characteristics
frequency shift
resonant frequencies
platforms

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Acoustic and breathing phonon modes in bilayer graphene with Moiré patterns. / Jiang, Jin Wu; Wang, Bing Shen; Rabczuk, Timon.

In: Applied Physics Letters, Vol. 101, No. 2, 023113, 09.07.2012.

Research output: Contribution to journalArticle

Jiang, Jin Wu ; Wang, Bing Shen ; Rabczuk, Timon. / Acoustic and breathing phonon modes in bilayer graphene with Moiré patterns. In: Applied Physics Letters. 2012 ; Vol. 101, No. 2.
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