TITLE

Electrostatic field-induced surface instability

AUTHOR(S)
Du, Danxu; Srolovitz, David
PUB. DATE
November 2004
SOURCE
Applied Physics Letters;11/22/2004, Vol. 85 Issue 21, p4917
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We examine the thermodynamics and evolution of the morphology of a metal surface in the presence of a large electric field. A flat surface is unstable for all finite electric fields E with a critical wavelength proportional to E-1 or E-2 at small and large fields, respectively. The instability wavelength that grows the fastest during surface diffusion-limited evolution scales in the same manner. Such instabilities are important for scanning probe microscopies and are becoming increasingly important in microelectromechanical systems applications as device dimensions are reduced.
ACCESSION #
15155568

 

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