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Rudneva, M. (author), Kozlova, T. (author), Zandbergen, H.W. (author)
Scanning transmission electron microscopy (STEM) imaging is applied to analyze the electromigration-induced thickness variations of thin polycrystalline films, It is shown that a high angle annular dark field (HAADF) detector is required to minimize the effect of diffraction contact. A further reduction of the diffraction contrast can be...
journal article 2014
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Kozlova, T. (author), Rudneva, M. (author), Zandbergen, H.W. (author)
We investigated the reversible electromigration in Pd–Pt nanobridges by means of in situ electron microscopy. Real-time nanometer-scale imaging with scanning transmission electron microscopy was used to determine the material transport. For high current densities (3–5 × 107 A cm?2), material transport occurs from the cathode towards the anode...
journal article 2013
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Rudneva, M. (author), Gao, B. (author), Prins, F. (author), Xu, Q. (author), Van der Zant, H.S.J. (author), Zandbergen, H.W. (author)
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,...
journal article 2013
document
Heersche, H.B. (author), Lientschnig, G. (author), O'Neill, K. (author), Van der Zant, H.S.J. (author), Zandbergen, H.W. (author)
The authors imaged electromigration-induced nanogap formation in situ by transmission electron microscopy. Real-time video recordings show that edge voids form near the cathode side. The polycrystalline gold wires narrow down until a single-grain boundary intersects the constriction along which the breaking continues. During the last 50?ms of...
journal article 2007
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