NDLI: Experimental Study of Head-Disk Interface Instability on Light Contact Recording Using Dynamic Flying Height Control

Content Provider	IEEE Xplore Digital Library
Author	Tani, H. Yamaguchi, T. Tagawa, N.
Copyright Year	1965
Abstract	The instability of the slider touchdown process was observed by the sensitive method that uses PZT ((Zr_x Ti_{1 - x}) O₃ ) sensor mounted on a suspension. By using this method, we could differentiate from the contact between the slider and the lubricant surface, the stable regime beyond touchdown (surfing regime), and the final full contact with the disk surface. Z-dol2000S clearly showed the surfing regime, but Z-tetraol2000S did not show the surfing regime on a thin lubricant film with a thickness of less than 16 Å. In the case of Z-dol, the magnitude of the slider vibration at the contact on the lubricant surface depended on the lubricant thickness; in the case of Z-tetraol, a large vibration was observed only at 20 Å. We have tried to explain these phenomena with the help of potential energy curves that are based on intermolecular forces calculated by molecular dynamic simulations. Potential energy curves could be used to explain the stability of the touchdown process.
Sponsorship	IEEE Magnetics Society
Starting Page	117
Ending Page	123
Page Count	7
File Size	1127646
File Format	PDF
ISSN	00189464
Volume Number	47
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lubricants Force Vibrations Carbon Surface treatment Surface roughness Rough surfaces magnetic recording Head-disk interface lubricant magnetic head
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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Effect of van der Waals Forces in a Near Contact Head-Disk Interface

Dynamics of Partial Contact Head Disk Interface

Head–Disk Interface Materials Issues in Heat-Assisted Magnetic Recording

Relationship of Adhesion/Friction Forces and Slider Vibration in Surfing-Recording HDI System

Partial-contact head-disk interface approach for high-density recording

Investigations of Light Contact and Lube-Surfing State With Electrical Current

Dynamic Head-Disk Interface Instabilities With Friction for Light Contact (Surfing) Recording

Air-Bearing Design Towards Highly Stable Head–Disk Interface at Ultralow Flying Height

Investigation of Flying-Height Stability of Thermal Fly-Height Control Sliders in Lubricant or Solid Contact with Roughness

Experimental Study of Head-Disk Interface Instability on Light Contact Recording Using Dynamic Flying Height Control

Similar Documents

Effect of van der Waals Forces in a Near Contact Head-Disk Interface

Dynamics of Partial Contact Head Disk Interface

Head–Disk Interface Materials Issues in Heat-Assisted Magnetic Recording

Relationship of Adhesion/Friction Forces and Slider Vibration in Surfing-Recording HDI System

Partial-contact head-disk interface approach for high-density recording

Investigations of Light Contact and Lube-Surfing State With Electrical Current

Dynamic Head-Disk Interface Instabilities With Friction for Light Contact (Surfing) Recording

Air-Bearing Design Towards Highly Stable Head–Disk Interface at Ultralow Flying Height

Investigation of Flying-Height Stability of Thermal Fly-Height Control Sliders in Lubricant or Solid Contact with Roughness

Experimental Study of Head-Disk Interface Instability on Light Contact Recording Using Dynamic Flying Height Control