• Featured in Physics

Absolute Scale Quantitative Off-Axis Electron Holography at Atomic Resolution

Florian Winkler, Juri Barthel, Amir H. Tavabi, Sven Borghardt, Beata E. Kardynal, and Rafal E. Dunin-Borkowski
Phys. Rev. Lett. 120, 156101 – Published 11 April 2018
Physics logo See Synopsis: Getting More out of Electron Microscopy
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Abstract

An absolute scale match between experiment and simulation in atomic-resolution off-axis electron holography is demonstrated, with unknown experimental parameters determined directly from the recorded electron wave function using an automated numerical algorithm. We show that the local thickness and tilt of a pristine thin WSe2 flake can be measured uniquely, whereas some electron optical aberrations cannot be determined unambiguously for a periodic object. The ability to determine local specimen and imaging parameters directly from electron wave functions is of great importance for quantitative studies of electrostatic potentials in nanoscale materials, in particular when performing in situ experiments and considering that aberrations change over time.

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  • Received 30 January 2018

DOI:https://doi.org/10.1103/PhysRevLett.120.156101

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Synopsis

Key Image

Getting More out of Electron Microscopy

Published 11 April 2018

A new analysis technique allows researchers to extract atomic-resolution holographic images of materials using a transmission electron microscope.

See more in Physics

Authors & Affiliations

Florian Winkler1,2,*, Juri Barthel1,3, Amir H. Tavabi1,2, Sven Borghardt4, Beata E. Kardynal4, and Rafal E. Dunin-Borkowski1,2

  • 1Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C), Forschungszentrum Jülich, 52425 Jülich, Germany
  • 2Peter Grünberg Institute 5 (PGI-5), Forschungszentrum Jülich, 52425 Jülich, Germany
  • 3Gemeinschaftslabor für Elektronenmikroskopie (GFE), RWTH Aachen University, 52074 Aachen, Germany
  • 4Peter Grünberg Institute 9 (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany

  • *Corresponding author. f.winkler@fz-juelich.de

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Issue

Vol. 120, Iss. 15 — 13 April 2018

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