Abstract
An optical microscopy study of ordered structures, namely bands, and self-organized phenomena in a continuous gold film system deposited on silicone oil surfaces is presented. The bands are composed of a large number of parallel keys with different width w but nearly uniform length L; the characteristic length of the bands is of the order of 10 1–10 2 μm. After disturbed with an external force, the growth process of the bands is observed directly. The experiment indicates that the formation mechanism of bands can be explained in terms of the relaxation of the compressive stress, which mainly results from the characteristic boundary condition of the nearly free sustained films.
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