Origin of Non-Gaussian Velocity Distribution Found in Freestanding Graphene Membranes. (13th March 2019)

• Record Type: Journal Article
• Authors: Kai, Yue; Xu, Wenlong; Zheng, Bailin; Yang, Nan; Zhang, Kai; Thibado, P. M.
• Other Names: Volchenkov Dimitri Academic Editor.
• Is Part Of: Complexity. Volume 2019(2019)
• Publication Date: 2019-03-13
• Subjects: Chaotic behavior in systems -- Periodicals; Complexity (Philosophy) -- Periodicals; 003
• DOI: 10.1155/2019/6101083
• Languages: English
• ISSNs: 1076-2787

Abstract

Abstract : In this study, an analytic derivation is made for the truncated Cauchy-Lorentz velocity distribution experimentally observed in freestanding graphene membranes. Three methods are used and discussed, including the Fokker-Planck-Kolmogorov equation, the maximum nonsymmetric entropy principle, and the Bayesian inference. From these results, a physical mechanism is provided for the non-Gaussian velocity distribution in terms of carbon atom arrangement in freestanding graphene. Moreover, a new theoretical foundation is proposed for future studies of the anomalous dynamics of carbon atoms in graphene membranes.