Distribution of ripples in graphene membranes

被引：4

作者：

Yu, Jin ^{[1
,2
,3
]}

Katsnelson, Mikhail, I ^{[2
]}

Zhang, Tianzhong ^{[1
]}

Yuan, Shengjun ^{[2
,4
,5
]}

机构：

[1] Shanghai Univ, Sch Mech & Engn Sci, Shanghai Inst Appl Math & Mech, Shanghai Key Laboratoryof Mech Energy Engn, Shanghai 200444, Peoples R China

[2] Radboud Univ Nijmegen, Inst Mol & Mat, Heijendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands

[3] Zhejiang Lab, Hangzhou 311100, Peoples R China

[4] Wuhan Univ, Minist Educ, Key Lab Artificial Micro & Nanostruct, Wuhan 430072, Peoples R China

[5] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China

来源：

PHYSICAL REVIEW B | 2022年 / 106卷 / 04期

基金：

国家重点研发计划;

关键词：

FLUCTUATIONS; CRYSTALLINE; CARBON;

D O I：

10.1103/PhysRevB.106.045418

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intrinsic ripples with various configurations and sizes were reported to affect the physical and chemical properties of two-dimensional (2D) materials. By performing molecular dynamics simulations and theoretical analysis, we use two geometric models of the ripple shape to explore numerically the distribution of ripples in the graphene membrane. We focus on the ratio of the ripple height to its diameter (t/D) which was recently shown to be the most relevant for chemical activity of graphene membranes. Our result demonstrates that the ripple density decreases as the coefficient t/D increases, in qualitative agreement with the Boltzmann distribution derived analytically from the bending energy of the membrane. Our theoretical paper provides also specific quantitative information on the ripple distribution in graphene and gives new insights applicable to other 2D materials.

引用

页数：5

共 31 条

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