書誌事項
- タイトル別名
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- Chemical Analysis of Single Graphene Overcoat and Lubricant For Next Generation High Density Magnetic Disk
抄録
<p>Decreasing head/medium spacing and Heat-Assisted Magnetic Recording (HAMR) are key issues for achieving future high density hard disk system. Single graphene (SG) film is the most promising material for those technologies because of monomolecular thickness around 0.3 nm, large heat resistance for FePt magnetic recording medium (850K, Curie temperature) and high shield performance against migration of Co or Fe ions which causes creation of smear. However, single crystal graphene film is basically inert with weak bonding to substrate and lubricant. In this report, we examined new lubricants, perfluorinated poly ether (PFPE) with OH and phenyl groups for some graphene materials, i.e. single crystal graphene, graphene oxides (GO), or SG film on CoPt using surface-enhanced Raman spectroscopy (SERS) with new optical device, i.e. transmission-type plasmonic sensor. The lubricant exhibits good bonding performance to defect structures in graphene oxide through phenyl groups, Defect structures are composed of dangling bonds or oxidated carbon. Thermal resistance of the lubricant on GO increases compared with non-bonding lubricant on SiO2. According to the depth profile of Raman spectra around interface between SG film/CoPt medium, the SG film adheres to the CoPt medium through Co hydroxide.</p>
収録刊行物
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- IIP情報・知能・精密機器部門講演会講演論文集
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IIP情報・知能・精密機器部門講演会講演論文集 2023 (0), IIPA-1-7-, 2023
一般社団法人 日本機械学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390016107126378112
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- ISSN
- 24243140
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可