10.1021/acs.jpcc.8b05963.s001 Carlos Pimentel Carlos Pimentel Enrico Gnecco Enrico Gnecco Carlos M. Pina Carlos M. Pina Epitaxial Growth and Frictional Response of Otavite and Spherocobaltite on Dolomite (10.4) Surfaces American Chemical Society 2018 dolomite substrates Similar values supersaturated solutions dolomite crystals CoCO 3 room temperature otavite observations show force microscopy Frictional Response dolomite substrate structure CdCO 3 lattice parameters dolomite step edges friction images High-resolution friction AFM images Epitaxial Growth spherocobaltite overgrow spherocobaltite overgrowth surfaces 2018-09-06 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Epitaxial_Growth_and_Frictional_Response_of_Otavite_and_Spherocobaltite_on_Dolomite_10_4_Surfaces/7108664 Growth of otavite (CdCO<sub>3</sub>) and spherocobaltite (CoCO<sub>3</sub>) has been promoted on dolomite (10.4) surfaces at room temperature by immersing cleaved dolomite crystals in highly supersaturated solutions with respect to those phases. In situ atomic force microscopy (AFM) observations show that otavite and spherocobaltite overgrow preferentially on dolomite step edges and (10.4) terraces by two-dimensional nucleation. High-resolution friction AFM images reveal the parallelism between the lattices of the overgrowths and the substrate, demonstrating that the growth of otavite and spherocobaltite on dolomite (10.4) surfaces is epitaxial. Similar values of lattice parameters measured on high-resolution friction images of substrates and overgrowths indicate the accommodation of the otavite and spherocobaltite (10.4) surface lattices to the dolomite substrate structure. The frictional response of otavite and spherocobaltite overgrowth surfaces resulted to be significantly higher than that of dolomite. These differences in frictional response can be attributed to the strain generated by the misfits between dolomite substrates and the overgrowths.