https://doi.org/10.1140/epjb/s10051-023-00624-w
Regular Article - Solid State and Materials
Modulation of frictional torque of nanoparticle near graphene-covered SiC nanowires
Department of Physics, Nanchang University, 330031, Nanchang, China
Received:
17
October
2023
Accepted:
16
November
2023
Published online:
29
November
2023
We investigate the frictional torque acting on a nanoparticle rotating near graphene-covered SiC nanowires. The physical mechanisms for the enhancement of the frictional torque acting on the nanoparticle are analyzed in detail. We find that the frictional torque is intensively dependent on the rotation frequency of the nanoparticle, the filling factor of SiC nanowires, and the chemical potential of graphene. Several peaks appear in the frictional torque curve as the rotation frequency of the nanoparticle increases. When the rotation frequency is small, the frictional torque increases linearly with the rotation frequency. While the relationship between frictional torque and rotation frequency is complex when the rotation frequency becomes large. The frictional torque increases as the chemical potential increases at a low rotation frequency. However, at high rotation frequency, the frictional torque increases quickly as the chemical potential increases, while it will decrease as the chemical potential continues to increase after reaching the maximum value. The results obtained in this work are meaningful for understanding the Casimir friction.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
