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Applied Physics Letters / Volume 96 / Issue 22 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 96, 221907 (2010); http://dx.doi.org/10.1063/1.3436639 (3 pages)

Electron coherent diffraction tomography of a nanocrystal

Roman Dronyak1,2, Keng S. Liang1, Jin-Sheng Tsai1, Yuri P. Stetsko1, Ting-Kuo Lee3, and Fu-Rong Chen2

1National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30076, Taiwan
2Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
3Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan

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(Received 15 March 2010; accepted 6 May 2010; published online 3 June 2010)

Coherent diffractive imaging (CDI) with electron or x-ray sources is a promising technique for investigating the structure of nanoparticles down to the atomic scale. In electron CDI, a two-dimensional reconstruction is demonstrated using highly coherent illumination from a field-emission gun as a source of electrons. In a three-dimensional (3D) electron CDI, we experimentally determine the morphology of a single MgO nanocrystal using the Bragg diffraction geometry. An iterative algorithm is applied to invert the 3D diffraction pattern about a (200) reflection of the nanoparticle measured at an angular range of 1.8°. The results reveal a 3D image of the sample at ∼ 8 nm resolution, and agree with a simulation. Our work demonstrates an alternative approach to obtain the 3D structure of nanocrystals with an electron microscope.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

Bragg gratings, electron diffraction, iterative methods, magnesium compounds, nanoparticles, tomography, transmission electron microscopy

PACS

  • 61.46.Df

    Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots)

  • 61.05.J-

    Electron diffraction and scattering

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3436639

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    R. Dronyak, K. S. Liang, Y. P. Stetsko, T. K. Lee, C. K. Feng, J. S. Tsai, and F. R. Chen, Appl. Phys. Lett. 95, 111908 (2009)APPLAB000095000011111908000001.

    S. Marchesini, H. He, H. N. Chapman, S. P. Hau-Riege, A. Noy, M. R. Howells, U. Weierstall, and J. C. H. Spence, Phys. Rev. B 68, 140101(R) (2003).

    C. C. Chen, J. Miao, C. W. Wang, and T. K. Lee, Phys. Rev. B 76, 064113 (2007).

    I. K. Robinson, I. A. Vartanyants, G. J. Williams, M. A. Pfeifer, and J. A. Pitney, Phys. Rev. Lett. 87, 195505 (2001).

    G. J. Williams, M. A. Pfeifer, I. A. Vartanyants, and I. K. Robinson, Phys. Rev. Lett. 90, 175501 (2003).

    J. Miao, T. Ohsuna, O. Terasaki, K. O. Hodgson, and M. A. O'Keefe, Phys. Rev. Lett. 89, 155502 (2002).


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