Head Smear Reduction in Head-Disk Interface of HAMR Using External AC Electric Field

被引：0
作者：
Tani, Hiroshi [1 ]
Miyuki, Yuto [2 ]
Kawada, Shohei [1 ]
Lu, Renguo [1 ]
Koganezawa, Shinji [1 ]
机构：
[1] Kansai Univ, Mech Engn Dept, Osaka 5648680, Japan
[2] Kansai Univ, Grad Sch, Osaka 5648680, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2025年 / 61卷 / 04期
关键词：
Electric fields; Voltage; Pins; Lubricants; Films; Diamond-like carbon (DLC); heat-assisted magnetic recording (HAMR); lubricants; magnetic heads; tribology;
D O I：
10.1109/TMAG.2024.3452784
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Head smear in a head-disk interface (HDI) of the heat-assisted magnetic recording disturbs the head flyability. This study focused on the effect of an external ac electric field on reducing head smears. The smear amount from the disks with lubricant films under an ac electric field and laser heating was evaluated. The smear amount decreased when an electric field was applied between the disk and pin. This is because the ions that desorb from the disk surface get trapped in the space between the disk and pin surfaces and do not reach the pin surface because of the ac electric field.
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页数：5
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