Electron tomography imaging methods with diffraction contrast for materials research

Satoshi Hata, Hiromitsu Furukawa, Takashi Gondo, Daisuke Hirakami, Noritaka Horii, Ken Ichi Ikeda, Katsumi Kawamoto, Kosuke Kimura, Syo Matsumura, Masatoshi Mitsuhara, Hiroya Miyazaki, Shinsuke Miyazaki, Mitsu Mitsuhiro Murayama, Hideharu Nakashima, Hikaru Saito, Masashi Sakamoto, Shigeto Yamasaki

Research output: Contribution to journalArticle

Abstract

Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) enable the visualization of three-dimensional (3D) microstructures ranging from atomic to micrometer scales using 3D reconstruction techniques based on computed tomography algorithms. This 3D microscopy method is called electron tomography (ET) and has been utilized in the fields of materials science and engineering for more than two decades. Although atomic resolution is one of the current topics in ET research, the development and deployment of intermediate-resolution (non-atomic-resolution) ET imaging methods have garnered considerable attention from researchers. This research trend is probably not irrelevant due to the fact that the spatial resolution and functionality of 3D imaging methods of scanning electron microscopy (SEM) and X-ray microscopy have come to overlap with those of ET. In other words, there may be multiple ways to carry out 3D visualization using different microscopy methods for nanometer-scale objects in materials. From the above standpoint, this review paper aims to (i) describe the current status and issues of intermediate-resolution ET with regard to enhancing the effectiveness of TEM/STEM imaging and (ii) discuss promising applications of state-of-the-art intermediate-resolution ET for materials research with a particular focus on diffraction contrast ET for crystalline microstructures (superlattice domains and dislocations) including a demonstration of in situ dislocation tomography.

Original languageEnglish
Pages (from-to)141-155
Number of pages15
JournalMicroscopy (Oxford, England)
Volume69
Issue number3
DOIs
Publication statusPublished - May 21 2020

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Instrumentation
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Hata, S., Furukawa, H., Gondo, T., Hirakami, D., Horii, N., Ikeda, K. I., Kawamoto, K., Kimura, K., Matsumura, S., Mitsuhara, M., Miyazaki, H., Miyazaki, S., Murayama, M. M., Nakashima, H., Saito, H., Sakamoto, M., & Yamasaki, S. (2020). Electron tomography imaging methods with diffraction contrast for materials research. Microscopy (Oxford, England), 69(3), 141-155. https://doi.org/10.1093/jmicro/dfaa002