Heat assisted magnetic recording media design using impedance modification method

A. Ghoreyshi, S. Wang, R. H. Victora

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Heat assisted magnetic recording (HAMR) is a promising approach to increase the magnetic recording areal density beyond 1 Tb/in2. In a HAMR system, an optical near field transducer (NFT) is used to locally increase the temperature of recording media so that the writing head can write information on the recording media. Various types of NFT designs have been investigated to improve the optical efficiency and the shape of the optical beam on the recording media [1]-[2]. However, the effects of the recording media structure on the performance of the NFT are not well understood yet. In this work, we study the effect of modification of the recording media structure using dielectric materials to increase the field enhancement and obtain a desirable beam profile in the recording layer.

Original languageEnglish (US)
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
StatePublished - Jul 14 2015
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: May 11 2015May 15 2015

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period5/11/155/15/15

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