Negative out-of-plane Poisson’s ratio of bilayer graphane

Viet Hung Ho, Duc Tam Ho, Cao Thang Nguyen, Sung Youb Kim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


With its excellent mechanical and thermal properties, bilayer graphane is a promising material for realizing future nanoelectromechanical systems. In this study, we focus on the auxetic behavior of bilayer graphane under external loading along various directions through atomistic simulations. We numerically and theoretically reveal the mechanism of the auxeticity in terms of intrinsic interactions between carbon atoms by constructing bilayer graphane. Given that the origin of the auxeticity is intrinsic rather than extrinsic, the work provides a novel technique to control the dimensions of nanoscale bilayer graphane by simply changing the external conditions without the requirement of complex structural design of the material.
Original languageEnglish
Article number255705
Number of pages11
Issue number25
Early online date1 Apr 2022
Publication statusPublished - 18 Jun 2022
Externally publishedYes

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