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Anisotropic surface coupling while sliding on dolomite and calcite crystals



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Pina Martínez, Carlos Manuel and Miranda, Rodolfo and Gnecco, Enrico (2012) Anisotropic surface coupling while sliding on dolomite and calcite crystals. Physical review. B, Condensed matter, 85 (073402). pp. 1-4. ISSN 0163-1829; 1095-3795


Official URL: https://journals.aps.org/archive/


High-resolution friction force microscopy has been performed on the (104) surfaces of dolomite and calcite in deionized water. The two rows of oxygen atoms alternating in a zigzag way on top of both surfaces are resolved with similar contrast while scanning along the [421] direction. Along the [010] direction, only one row is resolved, provided that the normal loading is large enough. The direction-dependent interaction between the probing tip and surface atoms is explained by numeric calculations based on the Prandtl-Tomlinson model.

Item Type:Article
Uncontrolled Keywords:Dolomite, Calcite
Subjects:Sciences > Geology > Crystallography
ID Code:49877
Deposited On:02 Nov 2018 12:40
Last Modified:11 Dec 2018 08:46

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