Departmental Papers (MSE)

Document Type

Journal Article

Date of this Version

February 2008


We present real-time transmission electron microscopy of nanogap formation by feedback controlled electromigration that reveals a remarkable degree of crystalline order. Crystal facets appear during feedback controlled electromigration indicating a layer-by-layer, highly reproducible electromigration process avoiding thermal runaway and melting. These measurements provide insight into the electromigration induced failure mechanism in sub-20 nm size interconnects, indicating that the current density at failure increases as the width decreases to approximately 1 nm.


Copyright American Physical Society. Reprinted from Physical Review Letters, Volume 100, Issue 3, Article 056805, February 2008, 4 pages.
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molecular electronic devices, electronic structure of nanoscale materials, electrical properties of metal-to-metal contacts, nanoscale contacts (electronic transpor



Date Posted: 20 March 2008

This document has been peer reviewed.