CCTN14
 

Interactions in interlayer spaces of layered materials

Young-Woo Son
School of Computational Sciences, Korea Institute for Advanced Study, Seoul, N/A, Korea, Republic Of
hand@kias.re.kr
Many layered materials such as multilayered graphene, BN, and MoS2 have distinct physical and chemical properties related with interactions between layers. In this work, I will present our recent theoretical works related with delicate interactions between layers themselves and with inserted liquids in interlayer spaces. First, depending on characteristics of layer interactions, it is shown that the responses of layered materials to external mechanical forces vary greatly ranging from weakly compressible, completely compressible to auxetic spacing variations [1]. Second, when water can immerse into interlayer spaces of graphene oxide, the formation of ice layers and their dislocations are shown to depend on interlayer distances critically [2], which may provide a clue to explain a recent experiment [3] on the peculiar water dynamics in graphene oxide.

[1] S. Woo and Y.-W. Son, in preparation.
[2] D. W. Bouhkvalov, M. I. Katsnelson, Y.-W. Son, Nano Lett. 13, 3930 (2013).
[3] R. R. Nair et al, Science 335, 442 (2012)