Journal of Electron Microscopy Advance Access published online on January 21, 2009
Journal of Electron Microscopy, doi:10.1093/jmicro/dfn030
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Atomic-resolution spectroscopic imaging: past, present and future
1 Materials Science and Technology Division, Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831-6030
2 Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, USA
* To whom correspondence should be addressed. E-mail: pennycooksj{at}ornl.gov
This review examines the development of atomically resolved electron energy loss spectroscopy from the first demonstration of plane-by-plane compositional profiling, through column-by-column spectroscopy to full two-dimensional and potentially three-dimensional spectroscopic imaging. Examples will be presented to highlight the increasing analytical sensitivity and image contrast obtained through each generation of aberration correction, moving towards the ultimate goal of mapping electronic structure inside materials with atomic resolution.
Keywords annular dark field, column-by-column spectroscopy, electron energy loss, scanning transmission electron microscopy, spectroscopy
Received 15 September 2008, accepted 9 December 2008
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