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Superlubricity of graphite

Dienwiebel, Martin ; Verhoeven, Gertjan S ; Pradeep, Namboodiri ; Frenken, Joost W M ; Heimberg, Jennifer A ; Zandbergen, Henny W

Physical review letters, 2004-03, Vol.92 (12), p.126101-126101, Article 126101 [Periódico revisado por pares]

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Título:
Superlubricity of graphite
Autor: Dienwiebel, Martin ; Verhoeven, Gertjan S ; Pradeep, Namboodiri ; Frenken, Joost W M ; Heimberg, Jennifer A ; Zandbergen, Henny W
É parte de: Physical review letters, 2004-03, Vol.92 (12), p.126101-126101, Article 126101
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Using a home-built frictional force microscope that is able to detect forces in three dimensions with a lateral force resolution down to 15 pN, we have studied the energy dissipation between a tungsten tip sliding over a graphite surface in dry contact. By measuring atomic-scale friction as a function of the rotational angle between two contacting bodies, we show that the origin of the ultralow friction of graphite lies in the incommensurability between rotated graphite layers, an effect proposed under the name of "superlubricity" [Phys. Rev. B 41, 11 837 (1990)]].
Editor: United States
Idioma: Inglês

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