Current-induced wave propagation on surfaces of voids in metallic thin films with high symmetry of surface diffusional anisotropy

Koronaki, ED; Gungor, MR; Siettos, CI; Maroudas, D

dc.contributor.author	Koronaki, ED	en
dc.contributor.author	Gungor, MR	en
dc.contributor.author	Siettos, CI	en
dc.contributor.author	Maroudas, D	en
dc.date.accessioned	2014-03-01T01:26:04Z
dc.date.available	2014-03-01T01:26:04Z
dc.date.issued	2007	en
dc.identifier.issn	0021-8979	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17910
dc.subject.classification	Physics, Applied	en
dc.subject.other	Anisotropy	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric fields	en
dc.subject.other	Electromigration	en
dc.subject.other	Surface diffusion	en
dc.subject.other	Surface waves	en
dc.subject.other	Wave propagation	en
dc.subject.other	Anisotropy strength	en
dc.subject.other	Diffusional anisotropy	en
dc.subject.other	Misorientation angles	en
dc.subject.other	Void surface	en
dc.subject.other	Thin films	en
dc.title	Current-induced wave propagation on surfaces of voids in metallic thin films with high symmetry of surface diffusional anisotropy	en
heal.type	journalArticle	en
heal.identifier.primary	10.1063/1.2785847	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.2785847	en
heal.identifier.secondary	073506	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	We report results of a systematic theoretical analysis of the electromigration driven morphological evolution of voids in metallic thin films based on self-consistent numerical simulations according to a fully nonlinear surface transport model that accounts for surface diffusional anisotropy. The analysis focuses on film planes with high symmetry of surface diffusional anisotropy. The simulations indicate that under very low anisotropy strengths, there is indeed the possibility of current driven wave propagation on the void surface. Specifically, surface waves appear prior to film failure over a broad range of electric field strengths: from very weak to quite strong. These interesting phenomena appear only at negative misorientation angles between the electric field direction and fast directions of surface diffusion for very low anisotropy strengths. However, for a slight increase in the anisotropy strength, current-induced wave propagation is observed also in the case of positive misorientation angles. (C) 2007 American Institute of Physics.	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Journal of Applied Physics	en
dc.identifier.doi	10.1063/1.2785847	en
dc.identifier.isi	ISI:000250147700026	en
dc.identifier.volume	102	en
dc.identifier.issue	7	en