In Situ Transmission Electron Microscopy Imaging of Electromigration in Platinum Nanowires

Maria Rudneva, Bo Gao, Ferry Prins, Qiang Xu, Herre S.J. van der Zant, Henny W. Zandbergen
2013 Microscopy and Microanalysis  
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
more » ... re 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.
doi:10.1017/s1431927613012300 pmid:23920172 fatcat:urhqd4f4unddbk5xo3docvivry