Abstract
Patterns that formed spontaneously upon heating thermally evaporated thin films of gold (Au) and chromium (Cr) on silicon (Si) substrates to 500°C were investigated. A variety of patterns were observed. The type of pattern formed correlated with the thickness ratio of Cr to Au. The most striking pattern consisted of concentric rings spaced approximately 10–30μm apart. Each ring was composed of pits 2–5μm in length, which extended 200–400nm into the silicon substrate. While concentric patterns are widely seen in chemical reaction-diffusion systems, pattern formation in the heated Au∕Cr∕Si system has not been previously observed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
