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In Situ Transmission Electron Microscopy Imaging of Electromigration in Platinum Nanowires

Published online by Cambridge University Press:  06 August 2013

Maria Rudneva ,
Bo Gao ,
Ferry Prins ,
Qiang Xu ,
Herre S.J. van der Zant  and
Henny W. Zandbergen
Maria Rudneva*
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Bo Gao
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Ferry Prins
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Qiang Xu
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Herre S.J. van der Zant
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
Henny W. Zandbergen
Affiliation:
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
*
*Corresponding author. E-mail: M.Rudneva@tudelft.nl
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Abstract

In situ transmission electron microscopy was performed on the electromigration in platinum (Pt) nanowires (14 nm thick, 200 nm wide, and 300 nm long) with and without feedback control. Using the feedback control mode, symmetric electrodes are obtained and the gap usually forms at the center of the Pt nanowire. Without feedback control, asymmetric electrodes are formed, and the gap can occur at any position along the wire. The three-dimensional gap geometries of the electrodes in the Pt nanowire were determined using high-angle annular dark-field scanning transmission electron microscopy; the thickness of the nanowire is reduced from 14 nm to only a few atoms at the edge with a gap of about 5–10 nm.

Keywords

electromigrationtransmission electron microscopyin situ imaging
Type
Research Article
Information
Microscopy and Microanalysis , Volume 19 , Supplement S5: IUMAS , August 2013 , pp. 43 - 48
Copyright
Copyright © Microscopy Society of America 2013 

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Footnotes

†

Current address: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany

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