2011/08/30 by Jin-Wu Jiang, Jiang, Jin-Wu, Jian-Sheng Wang +1
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1108.5820
a note, not submitted
arxiv created 2011/08/30 · arxiv updated 2011/08/31
In this file, we apply the nonequilibrium Green's function method to calculate the coefficient of thermal expansion (CTE) in multiple layers of graphene. We focus on the effect from different layer number N. Our main prediction is that: the increase of N can either enhance or weaken CTE, depending on the strength of the substrate interaction γ. If γ< ε, where ε is the inter-layer interaction, the CTE will increase with increasing N. Otherwise, if γ> ε, CTE will decrease with increasing N.