Atom Probe Tomography: Development and Application to the Geosciences
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Atom probe tomography (APT) is an analytical technique that provides quantitative three-dimensional elemental and isotopic analyses at sub-nanometre resolution across the whole periodic table. Although developed and mostly used in the materials science and semiconductor fields, recent years have seen increasing development and application in the geoscience and planetary science disciplines. Atom probe studies demonstrate compositional complexity at the nanoscale and provide fundamental new insights into the atom-scale mechanisms taking place in minerals over geological time. Here, we provide an overview of APT, including the historical development and technical aspects of the instrumentation, and the fundamentals of data acquisition, data processing and data reconstruction. We also review previous studies and highlight the potential future applications of nanoscale geochemical studies of natural materials.
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Conceptual change in secondary chemistry : the role of multiple analogical models of atoms and molecules.Harrison, Allan G. (1996)Chemistry textbooks and teachers frequently use a variety of metaphors, analogies and models to describe atomic and molecular structures and processes. While it is widely believed that multiple analogical models encourage ...
Blum, T.; Darling, J.; Kelly, T.; Larson, D.; Moser, D.; Perez-Huerta, A.; Prosa, T.; Reddy, Steven; Reinhard, D.; Saxey, David; Ulfig, R.; Valley, J. (2017)The application of atom probe tomography (APT) within the Earth and planetary sciences has produced novel data sets that answer fundamental questions about the near-atomic scale distribution of elements and isotopes within ...
Saxey, David; Moser, D.; Piazolo, S.; Reddy, Steven; Valley, J. (2017)Atom Probe Tomography (APT) is rapidly finding new applications within the geosciences. Historically connected with materials science and semiconductor device applications, recent years have seen APT established as a ...