Determination of Position Jitter and Dot-Size Fluctuations in Patterned Arrays Fabricated by the Directed Self-Assembly of Gold Nanoparticles

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Determination of Position Jitter and Dot-Size Fluctuations in Patterned Arrays Fabricated by the Directed Self-Assembly of Gold Nanoparticles
Title:
Determination of Position Jitter and Dot-Size Fluctuations in Patterned Arrays Fabricated by the Directed Self-Assembly of Gold Nanoparticles
Journal Title:
Magnetics, IEEE Transactions on
Keywords:
Publication Date:
18 March 2014
Citation:
Asbahi, M.; Lim, K.T.P.; Wang, F.; Lin, M.Y.; Chan, K.S.; Wu, B.; Ng, V.; Yang, J.K.W., "Determination of Position Jitter and Dot-Size Fluctuations in Patterned Arrays Fabricated by the Directed Self-Assembly of Gold Nanoparticles," in Magnetics, IEEE Transactions on , vol.50, no.3, pp.51-55, March 2014 doi: 10.1109/TMAG.2013.2280018
Abstract:
The promise of magnetic bit-patterned media (BPM) in the hard disk drive (HDD) industry hinges on its capability to extend the data storage density beyond that achievable by conventional continuous media. Its success, however, depends strongly on meeting the jitter and throughput requirements of BPM with a suitable fabrication process. In the present work, we report on the directed self-assembly of gold nanoparticles using a topographical template as an approach to fulfill the BPM fabrication requirements. The effects of position jitter and dot-size fluctuations are examined by performing image analysis on scanning electron micrographs (SEMs) of samples fabricated with areal densities of 4.4 Teradot/in2. For comparison we considered three different cases: electron-beam lithography-defined templates, monolayer films of self-assembled nanoparticles on an unpatterned substrate, and nanoparticles directed to assemble within a template. Our analysis provides evidence for the improvements in position jitter of the directed assembly of nanoparticles over those that were left to assemble without a template.
License type:
PublisherCopyrights
Funding Info:
Description:
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
0018-9464
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