Nanoscale thermal analysis for heat-assisted magnetic recording

Nanoscale thermal analysis for heat-assisted magnetic recording
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热辅助磁记录的纳米级热分析

DOI:
10.1063/1.4996749
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发表时间:
2017-10
影响因子:
3.2
通讯作者:
Bogy David B.
Bogy David B.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Hu Yueqiang;Wu Haoyu;Meng Yonggang;Bogy David B.

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热辅助磁记录(HAMR)技术有望将硬盘驱动器的面密度提高到10tb /in本文对HAMR中的关键部件近场传感器(nft)进行了数值热研究。电磁和传热模型都包括在内。我们没有假设一个跨越纳米尺度间隙的传热模型,而是对各种模型进行了参数扫描,并研究了所有可能的结果。我们发现,如果头部-磁盘界面的传热系数(HDI)很高,则头部的碳涂层对于保护NFT免受多余热量的影响至关重要。为了更好地理解HAMR系统的传热机理,我们还研究了HDI上的热流密度和NFT的热效率。
The heat assisted magnetic recording (HAMR) technology is expected to increase the areal density of the hard disk drives up to 10 Tb/in.2 This paper presents a numerical thermal study of near field transducers (NFTs), a key component in HAMR. Both an electromagnetic and a heat transfer model are included. Instead of assuming a heat transfer model across the nanoscale gap, we performed a parameter sweep of various models and investigated all the possible results. We found that if the heat transfer coefficient across the head-disk interface (HDI) is high, the carbon overcoat on the head is critical for protecting the NFT from excess heat. The heat flux across the HDI and the thermal efficiency of the NFT are also investigated to better understand the heat transfer mechanism in the HAMR system.
DOI: 10.1063/1.4865404
发表时间: 2014-02-10
影响因子: 4
作者:
Budaev, Bair V.;Bogy, David B.
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DOI: 10.1109/intmag.2006.375599
发表时间: 2006-05
期刊: INTERMAG 2006 - IEEE International Magnetics Conference
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DOI: 10.1063/1.4745050
发表时间: 2012-08
影响因子: 3.2
作者:
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