Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15275
Title: Patterned magnetic nanostructures fabricated by E-beam induced phase transition method
Authors: ZHAO YAN
Keywords: Patterned media, Magnetic recording, CoC, Phase transition, E-beam.
Issue Date: 23-May-2006
Source: ZHAO YAN (2006-05-23). Patterned magnetic nanostructures fabricated by E-beam induced phase transition method. ScholarBank@NUS Repository.
Abstract: Continuing increases in the areal density of hard disk drives will be limited by thermal instability of the thin film medium. Patterned media have been suggested as a means to overcome this limitation and to enable recording densities of 1 Tb/in2 and beyond. In this study, we proposed a one-step method to fabricate the patterned nano-structure, which named nano-scaled phase transition method. Cobalt-carbon based thin films were used to produce nano-structures on because of their unique physical properties and structure. It will change from a non-magnetic material to a ferromagnetic material upon thermal treatment. Therefore, by subjecting the film under nano-scaled E-beam radiation, which acts as a thermal source, we can produce an array of magnetic nano-structures. Compared to the conventional methods, this method shows advantages of relative simplicity and cleanliness. It has the potential to produce arrays of magnetic nano-structures in the scale of sub-10 nm.
URI: http://scholarbank.nus.edu.sg/handle/10635/15275
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