True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy

Rode S, Oyabu N, Kobayashi K, Yamada H, Kühnle A (2009)
Langmuir 25(5): 2850-2853.

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Calcite (CaCO(3)) is one of the most abundant minerals on earth and plays an important role in a wide range of different fields including, for example, biomineralization and environmental geochemistry. Consequently, surface processes and reactions such as dissolution and growth as well as (macro)molecule adsorption are of greatest interest for both applied as well as fundamental research. An in-depth understanding of these processes requires knowledge about the detailed surface structure in its natural state which is quite often a liquid environment. We have studied the most stable cleavage plane of calcite under liquid conditions using frequency modulation atomic force microscopy. Using this technique, we achieved true atomic-resolution imaging, demonstrating the high-resolution capability of frequency modulation atomic force microscopy in liquids. We could reproduce contrast features reported before using contact mode atomic force microscopy, originating from the protruding oxygen atom of the carbonate groups. Besides this contrast, however, our results, indeed, indicate that we obtain more detailed structural information, revealing the calcium sublattice of the (10 (1) over bar4) cleavage plane.
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Rode S, Oyabu N, Kobayashi K, Yamada H, Kühnle A. True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy. Langmuir. 2009;25(5):2850-2853.
Rode, S., Oyabu, N., Kobayashi, K., Yamada, H., & Kühnle, A. (2009). True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy. Langmuir, 25(5), 2850-2853. doi:10.1021/la803448v
Rode, S., Oyabu, N., Kobayashi, K., Yamada, H., and Kühnle, A. (2009). True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy. Langmuir 25, 2850-2853.
Rode, S., et al., 2009. True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy. Langmuir, 25(5), p 2850-2853.
S. Rode, et al., “True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy”, Langmuir, vol. 25, 2009, pp. 2850-2853.
Rode, S., Oyabu, N., Kobayashi, K., Yamada, H., Kühnle, A.: True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy. Langmuir. 25, 2850-2853 (2009).
Rode, Sebastian, Oyabu, Noriaki, Kobayashi, Kei, Yamada, Hirofumi, and Kühnle, Angelika. “True Atomic-Resolution Imaging of (10(1)over-bar4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy”. Langmuir 25.5 (2009): 2850-2853.
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