High-Frequency Magnetic Recording Using a Dual Write Head

Naoki Akitaya; Simon John Greaves; Hiroaki Muraoka

doi:10.1109/TMAG.2015.2512593

High-Frequency Magnetic Recording Using a Dual Write Head

Naoki Akitaya, Simon John Greaves, Hiroaki Muraoka

電気通信研究所・ブロードバンド工学研究部門

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

Ultrashort magnetic field pulses of tens of picoseconds duration are able to reverse the magnetization of a particle if the applied field is perpendicular to the initial magnetization vector. Here, a dual write head structure combining ring and single pole type (SPT) heads is proposed to generate such fields in a recording medium in order to increase the rate at which data can be written. Using such a head, the magnetization reversal time can be reduced to 1/2-1/3 of that when using an SPT head.

本文言語	English
論文番号	7366572
ジャーナル	IEEE Transactions on Magnetics
巻	52
号	7
DOI	https://doi.org/10.1109/TMAG.2015.2512593
出版ステータス	Published - 2016 7月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
電子工学および電気工学

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10.1109/TMAG.2015.2512593

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abstract = "Ultrashort magnetic field pulses of tens of picoseconds duration are able to reverse the magnetization of a particle if the applied field is perpendicular to the initial magnetization vector. Here, a dual write head structure combining ring and single pole type (SPT) heads is proposed to generate such fields in a recording medium in order to increase the rate at which data can be written. Using such a head, the magnetization reversal time can be reduced to 1/2-1/3 of that when using an SPT head.",

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N2 - Ultrashort magnetic field pulses of tens of picoseconds duration are able to reverse the magnetization of a particle if the applied field is perpendicular to the initial magnetization vector. Here, a dual write head structure combining ring and single pole type (SPT) heads is proposed to generate such fields in a recording medium in order to increase the rate at which data can be written. Using such a head, the magnetization reversal time can be reduced to 1/2-1/3 of that when using an SPT head.

AB - Ultrashort magnetic field pulses of tens of picoseconds duration are able to reverse the magnetization of a particle if the applied field is perpendicular to the initial magnetization vector. Here, a dual write head structure combining ring and single pole type (SPT) heads is proposed to generate such fields in a recording medium in order to increase the rate at which data can be written. Using such a head, the magnetization reversal time can be reduced to 1/2-1/3 of that when using an SPT head.

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High-Frequency Magnetic Recording Using a Dual Write Head

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