Tunable self-organization of nanocomposite multilayers

Chen, C. Q.; Pei, Y. T.; Shaha, K. P.; De Hosson, J. Th. M.
February 2010
Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p073103
Academic Journal
In this letter we report the controlled growth and microstructural evolution of self-assembled nanocomposite multilayers that are induced by surface ion-impingement. The nanoscale structures together with chemical composition, especially at the growing front, have been investigated with high-resolution transmission electron microscopy. Concurrent ion impingement of growing films produces an amorphous capping layer 3 nm in thickness where spatially modulated phase separation is initiated. It is shown that the modulation of multilayers as controlled by the self-organization of nanocrystallites below the capping layer, can be tuned through the entire film.


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