Please use this identifier to cite or link to this item: https://doi.org/10.1109/APMRC.2006.365937
Title: 3D analysis of medium field with consideration of perpendicular head-medium combinations
Authors: Chai, K.S.
Liu, Z.J. 
Li, J.T.
Long, H.H.
Keywords: Magnetic field
Microgrid
Perpendicular recording
Read sensor
Recording medium
Issue Date: 2006
Source: Chai, K.S.,Liu, Z.J.,Li, J.T.,Long, H.H. (2006). 3D analysis of medium field with consideration of perpendicular head-medium combinations. Asia-Pacific Magnetic Recording Conference 2006, Digest of APMRC 2006 : -. ScholarBank@NUS Repository. https://doi.org/10.1109/APMRC.2006.365937
Abstract: This paper describes the comparison of the microgrid method [6] and a 3D FEM for predicting the medium field in perpendicular recording systems. The microgrid method uses Fourier series expansion to simulate the three dimensional (3D) field emanated from the perpendicular medium under the air bearing surface (ABS) of the read sensor. The proposed method can account for the effect of the recorded transitions (in downtrack direction) and track edge effect of neighboring recorded tracks (in crosstrack direction). The described method is particularly useful for the reconstruction of the playback waveforms of a large number of recorded transitions. Computed medium field in the gap region under the read head agrees well with numerical simulations using 3D finite element method (FEM). The purpose of this study aims at validating a developed model for generation of playback signals with consideration of varying perpendicular head-media combinations.
Source Title: Asia-Pacific Magnetic Recording Conference 2006, Digest of APMRC 2006
URI: http://scholarbank.nus.edu.sg/handle/10635/68674
ISBN: 1424408636
DOI: 10.1109/APMRC.2006.365937
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