Interplay between grain boundary grooving, stress, and dealloying in the agglomeration of NiSi1-xGex films

Autor: D. Mangelinck, Dongzhi Chi, D. J. Srolovitz, H. B. Yao, M. Bouville, X. Q. Pan, H. P. Sun
Rok vydání: 2006
Předmět:
DOI: 10.48550/arxiv.cond-mat/0605451
Popis: Germanosilicides, especially those formed on compressive substrates, are less stable than silicides against agglomeration. By studying the solid-state reaction of Ni thin film on strained Si0.8Ge0.2(001), we show that nickel germanosilicide is different from nickel silicide and nickel germanide in several respects: the grains are smaller and faceted, the groove angle is sharper, and dealloying takes place. The germanium out-diffusion creates a stress in the film which favors grooving and agglomeration.
Comment: 13 pages, 4 figures
Databáze: OpenAIRE