Achromatic elemental mapping beyond the nanoscale in the transmission electron microscope.
Achromatic elemental mapping beyond the nanoscale in the transmission electron microscope.
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DOI:
10.1103/physrevlett.110.185507
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发表时间:
2013-05
影响因子:
8.6
通讯作者:
K. Urban;J. Mayer;J. Jinschek;M. J. Neish;N. Lugg;L. Allen
中科院分区:
文献类型:
--
作者:
K. Urban;J. Mayer;J. Jinschek;M. J. Neish;N. Lugg;L. Allen
Newly developed achromatic electron optics allows the use of wide energy windows and makes feasible energy-filtered transmission electron microscopy (EFTEM) at atomic resolution. In this Letter we present EFTEM images formed using electrons that have undergone a silicon L(2,3) core-shell energy loss, exhibiting a resolution in EFTEM of 1.35 Å. This permits elemental mapping beyond the nanoscale provided that quantum mechanical calculations from first principles are done in tandem with the experiment to understand the physical information encoded in the images.