Control of head smear generation by diamond-like carbon films using an external electric field

被引：3
作者：
Tani, Hiroshi [1 ]
Lu, Renguo [1 ]
Koganezawa, Shinji [1 ]
Tagawa, Norio [1 ]
机构：
[1] Kansai Univ, Suita, Osaka, Japan
来源：
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2023年 / 29卷 / 03期
关键词：
Carbon films - Diamond like carbon films - Hydrocarbons - Magnetic recording - Magnetoplasma - Silicon wafers;
D O I：
10.1007/s00542-023-05421-0
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：
The formation of head smears in heat-assisted magnetic recording is a significant problem that must be addressed to ensure the reliability of the head-disk interface. In this study, we investigated the dependence of the electric field on the hydrocarbon smear generated by the diamond-like carbon (DLC) overcoat between a magnetic disk and a Si wafer used as a counter surface. We found that the electric field controlled the amount of hydrocarbon smear generated by the heated magnetic disks. A positive electric field extracted hydrocarbon ions from the thermal plasma toward the Si wafer, whereas a negative field attracted the hydrocarbon ions to the DLC surface. As a result, a positive electric field between the disk and the Si wafer increased the amount of smear, but a negative field reduced it. Therefore, when the laser irradiation in heat-assisted magnetic recording heats the DLC overcoat, the electric field between the slider and disk controls the smear generation.
引用
收藏
页码：295 / 300
页数：6
相关论文
共 9 条
[1]   Heat-assisted magnetic recording by a near-field transducer with efficient optical energy transfer [J].
Challener, W. A. ;
Peng, Chubing ;
Itagi, A. V. ;
Karns, D. ;
Peng, Wei ;
Peng, Yingguo ;
Yang, XiaoMin ;
Zhu, Xiaobin ;
Gokemeijer, N. J. ;
Hsia, Y. -T. ;
Ju, G. ;
Rottmayer, Robert E. ;
Seigler, Michael A. ;
Gage, E. C. .
NATURE PHOTONICS, 2009, 3 (04) :220-224
[2]  
Evtukh A, 2017, UKR J PHYS, V62, P526, DOI 10.15407/ujpe62.06.0526
[3]   Write-Induced Head Contamination in Heat-Assisted Magnetic Recording [J].
Kiely, James D. ;
Jones, Paul M. ;
Yang, Yang ;
Brand, John L. ;
Anaya-Dufresne, Manuel ;
Fletcher, Patrick C. ;
Zavaliche, Florin ;
Toivola, Yvete ;
Duda, John C. ;
Johnson, Michael T. .
IEEE TRANSACTIONS ON MAGNETICS, 2017, 53 (02)
[4]   Structural stability of nanometer thick diamond-like carbon films subjected to heating for thermally assisted magnetic recording [J].
Tagawa, Norio ;
Tani, Hiroshi .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2014, 20 (8-9) :1405-1411
[5]   Low Friction of Diamond-Like Carbon Film Due to Liquid Hydrocarbon Generated by Laser Heating in a Nitrogen Gas Environment [J].
Tani, H. ;
Naito, R. ;
Lu, R. ;
Koganezawa, S. ;
Tagawa, N. .
TRIBOLOGY LETTERS, 2020, 68 (03)
[6]   Electric Field Effect on Friction Coefficient of Diamond-Like Carbon Film Heated by Laser Irradiation [J].
Tani, Hiroshi ;
Izutani, Yuki ;
Lu, Renguo ;
Koganezawa, Shinji ;
Tagawa, Norio .
TRIBOLOGY LETTERS, 2021, 69 (03)
[7]   Investigation of mechanism of smear formation from diamond-like carbon films on heating [J].
Tani, Hiroshi ;
Lu, Renguo ;
Koganezawa, Shinji ;
Tagawa, Norio .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2021, 27 (06) :2243-2255
[8]   Experimental Study of Material Pick Up on Heat-Assisted Magnetic Recording (HAMR) Heads [J].
Xiong, Shaomin ;
Smith, Robert ;
Schreck, Erhard ;
Dai, Qing .
TRIBOLOGY LETTERS, 2021, 69 (02)
[9]   Material Transfer Inside Head Disk Interface for Heat Assisted Magnetic Recording [J].
Xiong, Shaomin ;
Wang, Na ;
Smith, Robert ;
Li, Dongbo ;
Schreck, Erhard ;
Dai, Qing .
TRIBOLOGY LETTERS, 2017, 65 (02)
1