Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15610
Title: Computer modeling and simulation of ultra-high density perpendicular recording processes
Authors: LONG HAOHUI
Keywords: perpendicular recording, micromagnetic modeling, Fast Fourier Transform on Multipole, microtrack model, vector potential, response surface methodology
Issue Date: 16-Nov-2006
Source: LONG HAOHUI (2006-11-16). Computer modeling and simulation of ultra-high density perpendicular recording processes. ScholarBank@NUS Repository.
Abstract: The aim of this thesis focuses on analyze of ultra-high density perpendicular recording processes by using micromagnetic modeling and analytical methods. A 3-D finite element micromagnetic model with a Fast Fourier Transform on Multipole algorithm proposed to speed up the demagnetization field calculation is developed. The combination of micromagnetic simulation and statistical modeling provides a promising approach towards designing recording heads and channels. The physics of microtrack model and media characteristic effects on transition noise are studied. Concerning the writing side, an analytical model for the perpendicular writer field based on vector potential method has been developed. With the analytical solution, the sensitivity analysis based on the response surface methodology is carried out to investigate the dominant effect of the design parameters on the write field performance. Finally, the write field distributions for the perpendicular writer with and without shielded pole and the influences of the design parameters are investigated.
URI: http://scholarbank.nus.edu.sg/handle/10635/15610
Appears in Collections:Ph.D Theses (Open)

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