Comparison of Signals From Micromagnetic Simulations, GFP Model, and an HDD Readback

Author

Kheong Sann Chan ; Kim Keng Teo ; Yu Lin, Maria ; Hiau Choon Kee ; Elidrissi, Moulay Rachid ; Quan Li ; Ko, Bengtheam ; Quekleong Choo ; Myint Ngwe Maung

Author_Institution

Data Storage Inst., Agency for Sci. Technol. & Res., Singapore, Singapore

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

The grain flipping probability (GFP) model is used to reproduce the output of micromagnetic (μ-mag) simulations several orders of magnitude faster. In this paper, we compare signals from the μ-magsimulations and the GFP model with readback from a Seagate hard disk drive (HDD). We validate our models by benchmarking the model output against the HDD readback in terms of magnetic write width, and signal-to-noise ratio and bit error rate as a function of the overshoot triplet parameters.

Keywords

disc drives; error statistics; hard discs; probability; GFP model; HDD readback; Seagate hard disk drive; bit error rate; grain flipping probability model; magnetic write width; micromagnetic simulations; signal comparison; signal-to-noise ratio; Bit error rate; Magnetic heads; Magnetic hysteresis; Magnetic recording; Micromagnetics; Saturation magnetization; Signal to noise ratio; Grain flipping probability (GFP) model; Hard disk drives (HDDs); hard disk drives (HDDs); magnetic recording; micromagnetic ( $mu $ -mag) simulations; micromagnetic simulations; overshoot triplet; recording channel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2441742

Filename

7118200