Multiple Layer Microwave-Assisted Magnetic Recording

Simon Greaves; Yasushi Kanai; Hiroaki Muraoka

doi:10.1109/TMAG.2016.2612244

Multiple Layer Microwave-Assisted Magnetic Recording

Simon Greaves, Yasushi Kanai, Hiroaki Muraoka

Broadband Engineering Division

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

17 Citations (Scopus)

Abstract

Simulations of recording on media with two and three distinct recording layers are presented. A high frequency field is used to select the layer on which data are recorded. Layer-selective recording was confirmed for two layer granular media with narrow distributions. For three layer media magnetostatic interactions between the layers led to a loss of selectivity in the bottom recording layer. Readout of data is possible by staggering transitions in different layers or by using a spin-torque oscillator.

Original language	English
Journal	IEEE Transactions on Magnetics
Volume	53
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2016.2612244
Publication status	Published - 2017 Feb

Keywords

Microwave-assisted magnetic recording (MAMR)
simulation
spin-torque oscillator (STO)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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keywords = "Microwave-assisted magnetic recording (MAMR), simulation, spin-torque oscillator (STO)",

author = "Simon Greaves and Yasushi Kanai and Hiroaki Muraoka",

note = "Funding Information: ACKNOWLEDGMENT This work was supported in part by JSPS Kaken-hi under Grant 16K06321, in part by the Advance Storage Research Consortium, and in part by JSOL, Japan, for software support.",

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AU - Kanai, Yasushi

AU - Muraoka, Hiroaki

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N2 - Simulations of recording on media with two and three distinct recording layers are presented. A high frequency field is used to select the layer on which data are recorded. Layer-selective recording was confirmed for two layer granular media with narrow distributions. For three layer media magnetostatic interactions between the layers led to a loss of selectivity in the bottom recording layer. Readout of data is possible by staggering transitions in different layers or by using a spin-torque oscillator.

AB - Simulations of recording on media with two and three distinct recording layers are presented. A high frequency field is used to select the layer on which data are recorded. Layer-selective recording was confirmed for two layer granular media with narrow distributions. For three layer media magnetostatic interactions between the layers led to a loss of selectivity in the bottom recording layer. Readout of data is possible by staggering transitions in different layers or by using a spin-torque oscillator.

KW - Microwave-assisted magnetic recording (MAMR)

KW - simulation

KW - spin-torque oscillator (STO)

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Multiple Layer Microwave-Assisted Magnetic Recording

Abstract

Keywords

ASJC Scopus subject areas

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