On the phonon dissipation contribution to nanoscale friction by direct contact

Sales de Mello, S. R.; Maia da Costa, M. E. H.; Menezes, C. M.; Boeira, C. D.; Freire, Jr., F. L.; Alvarez, F.; Figueroa, C. A.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

On the phonon dissipation contribution to nanoscale friction by direct contact

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Author(s):	Sales de Mello, S. R. ; Maia da Costa, M. E. H. ; Menezes, C. M. ; Boeira, C. D. ; Freire, Jr., F. L. ; Alvarez, F. ; Figueroa, C. A. Total Authors: 7
Document type:	Journal article
Source:	SCIENTIFIC REPORTS; v. 7, JUN 12 2017.
Web of Science Citations:	9
Abstract
The friction phenomenon is a ubiquitous manifestation of nature. Models considering phononic, electronic, magnetic, and electrostatic interactions are invoked to explain the fundamental forces involved in the friction phenomenon. In order to establish the incidence of the phonon prompting at the nanoscale friction by direct contact, we study a diamond spherical dome sliding on carbon thin films containing different amount of deuterium and hydrogen. The friction coefficient decreases by substituting hydrogen by deuterium atoms. This result is consistent with an energy dissipation vibration local mechanism from a disordered distribution of bond terminators. (AU)

FAPESP's process:	12/10127-5 - Research and development of nanostructured materials for electronic and surface physics applications
Grantee:	Fernando Alvarez
Support Opportunities:	Research Projects - Thematic Grants

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