Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene
Nanofriction with few layers of graphene as lubrication is an interesting issue recently, and it provides a quite important guide for modeling the nanofriction properties of nanodevice. Based on the molecular dynamics (MD) simulations, nanofriction properties of a silicon tip sliding on different gr...
| Главные авторы: | , , , , , , , |
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| Формат: | Статья |
| Язык: | English |
| Опубликовано: |
AIP Publishing LLC
2019-05-01
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| Серии: | AIP Advances |
| Online-ссылка: | http://dx.doi.org/10.1063/1.5094406 |
| _version_ | 1828183711232819200 |
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| author | Shichang Yao Jinping Zhang Jianjun Wang Aixia Mao Chong Li Chunyao Niu Jingpei Xie Yu Jia |
| author_facet | Shichang Yao Jinping Zhang Jianjun Wang Aixia Mao Chong Li Chunyao Niu Jingpei Xie Yu Jia |
| author_sort | Shichang Yao |
| collection | DOAJ |
| description | Nanofriction with few layers of graphene as lubrication is an interesting issue recently, and it provides a quite important guide for modeling the nanofriction properties of nanodevice. Based on the molecular dynamics (MD) simulations, nanofriction properties of a silicon tip sliding on different graphene layers with or without substrate were studied systemically. We revealed that the friction of these systems exhibits clearly the even-odd oscillations with different thickness of graphene, and we further demonstrated that such even-odd oscillations behavior is totally independent of the size of the silicon tips, as well as applying normal loadings. The underlying physics of this intriguing phenomenon is attributed to the oscillations of indirect-contact-atom-number between top and sublayers of suspended graphene. Furthermore, we showed that such indirect contact oscillations would be reflected by the direct contact oscillations between the tip and the top-layer graphene when graphene lubrication layers on a rigid substrate. Overall, our new findings not only enrich the nanofriction mechanism of graphene lubrication systems, but also introduce a new way to design the nanofriction systems with two-dimensional (2D) van der Waals materials as lubrications. |
| first_indexed | 2024-04-12T06:36:46Z |
| format | Article |
| id | doaj.art-3479f1a54b0d49c8aa08068f5ed51d8d |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-12T06:36:46Z |
| publishDate | 2019-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-3479f1a54b0d49c8aa08068f5ed51d8d2022-12-22T03:43:51ZengAIP Publishing LLCAIP Advances2158-32262019-05-0195055023055023-710.1063/1.5094406076905ADVNanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer grapheneShichang Yao0Jinping Zhang1Jianjun Wang2Aixia Mao3Chong Li4Chunyao Niu5Jingpei Xie6Yu Jia7International Laboratory for Quantum Functional Materials of Henan, and School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Information Engineering, Huanghe University of Science and Technology, Zhengzhou 450006, ChinaCollege of Science, Zhongyuan University of Technology, Zhengzhou 450007, ChinaInternational Laboratory for Quantum Functional Materials of Henan, and School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaInternational Laboratory for Quantum Functional Materials of Henan, and School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaInternational Laboratory for Quantum Functional Materials of Henan, and School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaCollaborative Innovation Center of Nonferrous Metals, and School of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaInternational Laboratory for Quantum Functional Materials of Henan, and School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, ChinaNanofriction with few layers of graphene as lubrication is an interesting issue recently, and it provides a quite important guide for modeling the nanofriction properties of nanodevice. Based on the molecular dynamics (MD) simulations, nanofriction properties of a silicon tip sliding on different graphene layers with or without substrate were studied systemically. We revealed that the friction of these systems exhibits clearly the even-odd oscillations with different thickness of graphene, and we further demonstrated that such even-odd oscillations behavior is totally independent of the size of the silicon tips, as well as applying normal loadings. The underlying physics of this intriguing phenomenon is attributed to the oscillations of indirect-contact-atom-number between top and sublayers of suspended graphene. Furthermore, we showed that such indirect contact oscillations would be reflected by the direct contact oscillations between the tip and the top-layer graphene when graphene lubrication layers on a rigid substrate. Overall, our new findings not only enrich the nanofriction mechanism of graphene lubrication systems, but also introduce a new way to design the nanofriction systems with two-dimensional (2D) van der Waals materials as lubrications.http://dx.doi.org/10.1063/1.5094406 |
| spellingShingle | Shichang Yao Jinping Zhang Jianjun Wang Aixia Mao Chong Li Chunyao Niu Jingpei Xie Yu Jia Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene AIP Advances |
| title | Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene |
| title_full | Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene |
| title_fullStr | Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene |
| title_full_unstemmed | Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene |
| title_short | Nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few-layer graphene |
| title_sort | nanofriction oscillation driven by sublayer indirect contact of silicon tip sliding on few layer graphene |
| url | http://dx.doi.org/10.1063/1.5094406 |
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