Optimisation of applied field pulses for microwave assisted magnetic recording

Simon John Greaves; Hiroaki Muraoka; Yasushi Kanai

doi:10.1063/1.4978584

Optimisation of applied field pulses for microwave assisted magnetic recording

Simon John Greaves, Hiroaki Muraoka, Yasushi Kanai

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Grains in a recording medium experience field pulses from a write head during recording. In general, a short head field rise time and a square pulse shape have been viewed as optimal. This work investigates the optimum field pulse shape for microwave assisted magnetic recording on single layer and ECC media. A square pulse was found to give the best recording performance on single layer media, but an initially negative field pulse increasing at a constant rate was more suitable for ECC media.

Original language	English
Article number	056517
Journal	AIP Advances
Volume	7
Issue number	5
DOIs	https://doi.org/10.1063/1.4978584
Publication status	Published - 2017 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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