In-plane adjustment of atomic positions and layer-dependent friction in 2D materials | |
Department | 固体润滑国家重点实验室(LSL) |
Minjuan He; Yunfeng Wang; Wenhao He; Yuan Niu; Zhibin Lu | |
The second department | 216计算摩擦学课题组 |
2023-02-21 | |
Source Publication | Applied Surface Science |
Issue | 620Pages:156810 |
Abstract | It is a fundamental trait of the nanoscale friction that the friction reduces as the number of layers increases in 2D materials. The physical origin behind it remains subject to debate. In this study, the DFT calculation results reproduce experimental observations of the layer-dependent friction in 2D materials and provide another critical insight that can grasp the trend at the atomic level. That is, the in-plane adjustment of atomic positions should be another key factor behind the layer-dependent friction besides the puckering effects, the electron–phonon coupling, and the quality of frictional contact. And it is found out that the in-plane adjustment of atomic positions will reduce the charge redistributions and further decrease the friction between layers, which should be the origin of the layer-dependent friction induced by the in-plane adjustment of atomic positions. Moreover, our results can also well apprehend the effects of the adsorption strength of substrate on the layer-dependent friction in 2D materials. |
Keyword | First-principles 2D materials Layer-dependent friction Atomic displacement |
If | 6.707 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/30638 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wenhao He; Zhibin Lu |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 2.School of Materials Science and Engineering, Lanzhou Jiaotong University |
Recommended Citation GB/T 7714 | Minjuan He,Yunfeng Wang,Wenhao He,et al. In-plane adjustment of atomic positions and layer-dependent friction in 2D materials[J]. Applied Surface Science,2023(620):156810. |
APA | Minjuan He,Yunfeng Wang,Wenhao He,Yuan Niu,&Zhibin Lu.(2023).In-plane adjustment of atomic positions and layer-dependent friction in 2D materials.Applied Surface Science(620),156810. |
MLA | Minjuan He,et al."In-plane adjustment of atomic positions and layer-dependent friction in 2D materials".Applied Surface Science .620(2023):156810. |
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luwen_4.pdf(5157KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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