NDLI: Micromagnetic simulation of high speed head dynamics in perpendicular recording

Content Provider	IEEE Xplore Digital Library
Author	Scholz, W. Batra, S.
Copyright Year	2005
Description	Author affiliation: Seagate Res., Pittsburgh, PA, USA (Scholz, W.; Batra, S.)
Abstract	The continuous increase in storage density and data rates in magnetic recording requires the reduction of the typical dimensions of magnetic write and read heads. As a result an ever more detailed understanding of the behavior of magnetic recording heads and their interaction with the recording media (and the SUL in perpendicular recording systems) and the underlying physical effects is required. As the size of the write pole shrinks, it becomes important to consider dynamic micromagnetic effects, which take into account the domain structure in the write head. In this paper, we have used a magnetic recording head model, which is based on a parallel finite element micromagnetics package, to study the magnetization reversal process in a single-pole-type (SPT) perpendicular recording head and the resulting write field dynamics. The model includes the full head structure including the return pole and a discretized micromagnetic SUL while the magnetic recording medium has been omitted. Finally, the effect of the head motion with respect to the magnetic recording media has to be taken into account.
Sponsorship	Magnetics Soc. of Japan Magnetics Soc. of the IEEE
Starting Page	161
Ending Page	162
File Size	169501
Page Count	2
File Format	PDF
ISBN	0780390091
DOI	10.1109/INTMAG.2005.1463509
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Micromagnetics Magnetic heads Perpendicular magnetic recording Magnetic recording Magnetization reversal Magnetic field measurement Damping Current measurement Time measurement Pulse measurements
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
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