NDLI: Exchange coupled composite media for perpendicular magnetic recording

Content Provider	IEEE Xplore Digital Library
Author	Victora, R.H. Shen, X.
Copyright Year	1965
Abstract	Exchange coupled composite (ECC) media has been shown to possess several major advantages relative to conventional perpendicular media, including a reduction in the switching field of approximately a factor two for the same thermal stability and greater insensitivity to easy axis distribution. In this paper, full magnetostatic interactions are included: this allows comparison between the behavior of multigrain thin films and that of isolated grains as presented earlier. Significant results include hysteresis loops for thin films under various conditions including inadequate and excessive intra granular exchange between the hard and soft materials. An important distinction is made between the coercivity and remnant coercivity as a function of angle between applied field and easy axis. A perpendicular magnetic recording head is used to compare the shape of effective fields for ECC and conventional perpendicular media. Written transitions in the ECC media appear to be similar to those written in perpendicular media at comparable densities.
Sponsorship	IEEE Magnetics Society
Starting Page	2828
Ending Page	2833
Page Count	6
File Size	467906
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Perpendicular magnetic recording Soft magnetic materials Transistors Coercive force Thermal factors Thermal stability Magnetostatics Magnetic hysteresis Magnetic materials thermal fluctuations Exchange coupled composite media perpendicular magnetic recording
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Issues in Recording Exchange Coupled Composite Media

Exchange coupled composite media for perpendicular magnetic recording

Effect of Composite Designs on Writability and Thermal Stability of Perpendicular Recording Media

Write Head Design for Exchange Coupled Composite Media

Effect of Intergranular Exchange on the Thermal Stability and Coercive Field of Perpendicular, Single Phase, Exchange Spring, and Coupled Granular Continuous (CGC) Perpendicular Recording Media

Comparison of Recording Head Designs for Perpendicular and Exchange-Coupled Composite Media

Computer Simulation of coercive force and thermal viscosity in perpendicular recording media

A Study of Perpendicular Magnetic Recording Media With an Exchange Control Layer

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