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Near-Field Electron Energy Loss Spectroscopy of Nanoparticles
Phys. Rev. Lett. 80, 782 – Published 26 January, 1998
DOI: https://doi.org/10.1103/PhysRevLett.80.782
Abstract
Near-field spectroscopy of nanoparticles was performed with a subnanometer probe size, using a scanning transmission electron microscope. At nonintersecting beam-particle configuration, surface collective modes are isolated from the entire excitation spectrum. The relativistic narrow beam generates a new type of spatial dispersion and may induce an additional spectral quantization. Line intensity variations during the mapping can be accounted for quantitatively by using a relatively simple theoretical model. This method is also suggested as a new way for transmission electron microscopy studies of beam sensitive samples.
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Comment on “Near-Field Electron Energy Loss Spectroscopy of Nanoparticles”
Phys. Rev. Lett. 83, 658 (1999)
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Phys. Rev. Lett. 83, 659 (1999)
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