Abstract
Chromium nanowires of diameter 40-120 nm have been grown inside lithographically fabricated U-trench templates on oxidized silicon substrate by RF sputtering deposition technique. Under favourable experimental conditions, very long nanowires can be grown which depends on the trench length and surface homogeneity along the axis. Surface wettability control by the restricted supply of metal vapour is the key for the formation of nanowires. Diameter/depth ratio for the trench template is demonstrated to be crucial for the growth of nanowires.
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