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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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Published on: July 5, 2016

3D atomic imaging by internal-detector electron holography.

Akio Uesaka1, Kouichi Hayashi, Tomohiro Matsushita

  • 1Tohoku Techno Arch Company, Limited, Sendai 980-8577, Japan.

Physical Review Letters
|August 27, 2011
PubMed
Summary
This summary is machine-generated.

Internal-detector electron holography, a novel technique, visualizes 3D atomic structures. This method successfully imaged strontium titanate (SrTiO3) atoms, including light elements, with high clarity.

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Published on: February 8, 2014

Area of Science:

  • Materials Science
  • Solid State Physics
  • Crystallography

Background:

  • Electron holography offers insights into atomic structures.
  • Photoelectron holography is a related technique.

Purpose of the Study:

  • To demonstrate the capability of internal-detector electron holography for 3D atomic imaging.
  • To visualize the atomic arrangement in strontium titanate (SrTiO3).

Main Methods:

  • Utilized internal-detector electron holography with an energy-dispersive X-ray detector and electron gun.
  • Recorded multiple-energy holograms of Ti Kα X-ray spectra at varying electron beam conditions.
  • Employed a fitting-based reconstruction algorithm to generate real-space images.

Main Results:

  • Successfully visualized 3D atomic arrangements of Sr, Ti, and O in SrTiO3.
  • Achieved clear imaging of atomic structures, demonstrating the technique's resolution.
  • Confirmed the ability to image light elements within the material.

Conclusions:

  • Internal-detector electron holography is a powerful tool for 3D atomic structure determination.
  • The technique shows significant potential for analyzing light elements in materials.
  • This method advances the field of atomic-scale imaging and materials characterization.