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Adjacent Track Interference in Heat-Assisted Magnetic Recording: Impact and Implications | IEEE Journals & Magazine | IEEE Xplore

Adjacent Track Interference in Heat-Assisted Magnetic Recording: Impact and Implications


Abstract:

Some aspects of the challenges to high track density heat-assisted magnetic recording (HAMR) are addressed with a focus on track interferences (adjacent as well as non-ne...Show More

Abstract:

Some aspects of the challenges to high track density heat-assisted magnetic recording (HAMR) are addressed with a focus on track interferences (adjacent as well as non-nearest neighbor erasure). Comparisons with corresponding conventional perpendicular magnetic recording (PMR) parameters are also made. Adjacent and non-nearest neighbor track erasure data from functional HAMR and PMR drives and simulation data of signal-to-noise ratio loss in HAMR are also presented.
Published in: IEEE Transactions on Magnetics ( Volume: 55, Issue: 7, July 2019)
Article Sequence Number: 3001804
Date of Publication: 03 March 2019

ISSN Information:


I. Introduction

Recent high areal density demonstrations of 1 Tb/in2 [1]–[4], [11] and higher, 3000 kFCI linear density [5], 1 million tracks per inch demonstrations [6], and successful drive integration [7]–[9] all have catapulted the heat-assisted magnetic recording (HAMR) technology into magnetic data storage device productization. The current stage of the HAMR integration into drives signifies the resolution of significant technical challenges [5], [10], [13].

References

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