Atom-scale ptychographic electron diffractive imaging of boron nitride cones

Corey T. Putkunz; Adrian J. D'Alfonso; Andrew J. Morgan; Matthew Weyland; Christian Dwyer; Laure Bourgeois; Joanne Etheridge; Ann Roberts; Robert E. Scholten; Keith A. Nugent; Leslie J. Allen

doi:10.1103/PhysRevLett.108.073901

Atom-scale ptychographic electron diffractive imaging of boron nitride cones

Corey T. Putkunz, Adrian J. D'Alfonso, Andrew J. Morgan, Matthew Weyland, Christian Dwyer, Laure Bourgeois, Joanne Etheridge, Ann Roberts, Robert E. Scholten, Keith A. Nugent, Leslie J. Allen

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

51 Scopus citations

Abstract

Ptychographic coherent diffractive imaging (CDI) has been extensively applied using both xrays and electrons. The extension to atomic resolution has been elusive. This Letter demonstrates ptychographic electron diffractive imaging at atomic resolution, permitting identification of structure in a boron nitride helical cone at a resolution of order 1, beyond that of comparative Z-contrast images. A scanning transmission electron microscope is used to create a diverging illumination in a defocused Fresnel CDI geometry, providing a robust strategy leading to a unique solution.

Original language	English (US)
Article number	073901
Journal	Physical Review Letters
Volume	108
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.108.073901
State	Published - Feb 14 2012
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.108.073901

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abstract = "Ptychographic coherent diffractive imaging (CDI) has been extensively applied using both xrays and electrons. The extension to atomic resolution has been elusive. This Letter demonstrates ptychographic electron diffractive imaging at atomic resolution, permitting identification of structure in a boron nitride helical cone at a resolution of order 1, beyond that of comparative Z-contrast images. A scanning transmission electron microscope is used to create a diverging illumination in a defocused Fresnel CDI geometry, providing a robust strategy leading to a unique solution.",

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AU - D'Alfonso, Adrian J.

AU - Morgan, Andrew J.

AU - Weyland, Matthew

AU - Dwyer, Christian

AU - Bourgeois, Laure

AU - Etheridge, Joanne

AU - Roberts, Ann

AU - Scholten, Robert E.

AU - Nugent, Keith A.

AU - Allen, Leslie J.

PY - 2012/2/14

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N2 - Ptychographic coherent diffractive imaging (CDI) has been extensively applied using both xrays and electrons. The extension to atomic resolution has been elusive. This Letter demonstrates ptychographic electron diffractive imaging at atomic resolution, permitting identification of structure in a boron nitride helical cone at a resolution of order 1, beyond that of comparative Z-contrast images. A scanning transmission electron microscope is used to create a diverging illumination in a defocused Fresnel CDI geometry, providing a robust strategy leading to a unique solution.

AB - Ptychographic coherent diffractive imaging (CDI) has been extensively applied using both xrays and electrons. The extension to atomic resolution has been elusive. This Letter demonstrates ptychographic electron diffractive imaging at atomic resolution, permitting identification of structure in a boron nitride helical cone at a resolution of order 1, beyond that of comparative Z-contrast images. A scanning transmission electron microscope is used to create a diverging illumination in a defocused Fresnel CDI geometry, providing a robust strategy leading to a unique solution.

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Atom-scale ptychographic electron diffractive imaging of boron nitride cones

Abstract

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