Towards artifact-free atomic-resolution elemental mapping with electron energy-loss spectroscopy

Y. Zhu; A. Soukiassian; D. G. Schlom; D. A. Muller; C. Dwyer

doi:10.1063/1.4823704

Towards artifact-free atomic-resolution elemental mapping with electron energy-loss spectroscopy

Y. Zhu, A. Soukiassian, D. G. Schlom, D. A. Muller, C. Dwyer

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Atomic-resolution elemental maps of materials obtained using energy-loss spectroscopy in the scanning transmission electron microscope (STEM) can contain artifacts associated with strong elastic scattering of the STEM probe. We demonstrate how recent advances in instrumentation enable a simple and robust approach to reduce such artifacts and produce atomic-resolution elemental maps amenable to direct visual interpretation. The concept is demonstrated experimentally for a (BaTiO₃)₈/(SrTiO₃) ₄ heterostructure, and simulations are used for quantitative analysis. We also demonstrate that the approach can be used to eliminate the atomic-resolution elastic contrast in maps obtained from lower-energy excitations, such as plasmon excitations.

Original language	English (US)
Article number	141908
Journal	Applied Physics Letters
Volume	103
Issue number	14
DOIs	https://doi.org/10.1063/1.4823704
State	Published - Sep 30 2013
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4823704

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title = "Towards artifact-free atomic-resolution elemental mapping with electron energy-loss spectroscopy",

abstract = "Atomic-resolution elemental maps of materials obtained using energy-loss spectroscopy in the scanning transmission electron microscope (STEM) can contain artifacts associated with strong elastic scattering of the STEM probe. We demonstrate how recent advances in instrumentation enable a simple and robust approach to reduce such artifacts and produce atomic-resolution elemental maps amenable to direct visual interpretation. The concept is demonstrated experimentally for a (BaTiO3)8/(SrTiO3) 4 heterostructure, and simulations are used for quantitative analysis. We also demonstrate that the approach can be used to eliminate the atomic-resolution elastic contrast in maps obtained from lower-energy excitations, such as plasmon excitations.",

author = "Y. Zhu and A. Soukiassian and Schlom, {D. G.} and Muller, {D. A.} and C. Dwyer",

note = "Funding Information: The work at Monash was supported by the Australian Research Council (DP110104734). The work at Cornell was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (DE-SC0002334).",

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AU - Soukiassian, A.

AU - Schlom, D. G.

AU - Muller, D. A.

AU - Dwyer, C.

N1 - Funding Information: The work at Monash was supported by the Australian Research Council (DP110104734). The work at Cornell was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (DE-SC0002334).

PY - 2013/9/30

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N2 - Atomic-resolution elemental maps of materials obtained using energy-loss spectroscopy in the scanning transmission electron microscope (STEM) can contain artifacts associated with strong elastic scattering of the STEM probe. We demonstrate how recent advances in instrumentation enable a simple and robust approach to reduce such artifacts and produce atomic-resolution elemental maps amenable to direct visual interpretation. The concept is demonstrated experimentally for a (BaTiO3)8/(SrTiO3) 4 heterostructure, and simulations are used for quantitative analysis. We also demonstrate that the approach can be used to eliminate the atomic-resolution elastic contrast in maps obtained from lower-energy excitations, such as plasmon excitations.

AB - Atomic-resolution elemental maps of materials obtained using energy-loss spectroscopy in the scanning transmission electron microscope (STEM) can contain artifacts associated with strong elastic scattering of the STEM probe. We demonstrate how recent advances in instrumentation enable a simple and robust approach to reduce such artifacts and produce atomic-resolution elemental maps amenable to direct visual interpretation. The concept is demonstrated experimentally for a (BaTiO3)8/(SrTiO3) 4 heterostructure, and simulations are used for quantitative analysis. We also demonstrate that the approach can be used to eliminate the atomic-resolution elastic contrast in maps obtained from lower-energy excitations, such as plasmon excitations.

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Towards artifact-free atomic-resolution elemental mapping with electron energy-loss spectroscopy

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