Fano resonance in atomic-resolution spectroscopic imaging of solids

C. Dwyer, H. L. Xin, and D. A. Muller
Phys. Rev. B 86, 094119 – Published 28 September 2012


We report direct evidence of Fano resonances in atomic-resolution imaging of a crystalline material using a focused electron beam. Spectroscopic images of DyScO3 that are derived from the Fano resonance in the Dy-N4,5 spectrum can exhibit unexpected atomic-scale contrast, markedly different from nonresonant images. These effects are explained by our theoretical calculations of the inelastic and elastic scattering, which show excellent agreement with the experimental data. The results have significant implications for spectroscopic imaging of rare-earth elements at the atomic scale.

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  • Received 13 January 2012


©2012 American Physical Society

Authors & Affiliations

C. Dwyer1,*, H. L. Xin2, and D. A. Muller3

  • 1Monash Centre for Electron Microscopy & Department of Materials Engineering & ARC Centre of Excellence for Design in Light Metals, Monash University, Victoria 3800, Australia
  • 2Department of Physics, Cornell University, Ithaca, New York 14853, USA
  • 3School of Applied and Engineering Physics & Kavli Institute, Cornell University, Ithaca, New York 14853, USA

  • *

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Vol. 86, Iss. 9 — 1 September 2012

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