%0 Journal Article
%A Pina Martínez, Carlos Manuel
%A Miranda, Rodolfo
%A Gnecco, Enrico
%T Anisotropic surface coupling while sliding on dolomite and calcite crystals
%D 2012
%@ 0163-1829; 1095-3795
%U https://hdl.handle.net/20.500.14352/42843
%X 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.
%~