抄録
A plasmonic sensor is used for emulation of near field transducer (NFT). Some overcoat films (thickness of 1nm) were coated on Au nanoparticles (NPs) on a convex quartz glass substrate (plasmonic sensor). Heating behavior of the films was examined by laser heating using novel Raman spectroscopic tools, i.e. surface-enhanced Raman scattering (SERS) with the plasmonic sensor, a continuous laser heating tool, in-situ observation of spectra and temperature with a high speed time-resolved measurement. The heating temperature of tetrahedral carbon (ta-C) film in He gas is lower than that in air. This is because the thermal conductivity of He is larger than air. Few spectral change of ta-C film (thickness of 1nm) on Au NP’s is observed except initial change in around 100 s at the temperature around 500?, which corresponds to the temperature of the carbon overcoat (COC) for the media temperature of 327? (600K, Currie temperature for CoPt alloy). Some carbide films, i.e. SiC, TiC, and WC, showed high heat resistance, that is, few spectral change was observed. It is found that lubricant is evaporated from the COC on magnetic media and transferred to the plasmonic sensor.
| 元の言語 | English |
|---|---|
| ホスト出版物のタイトル | ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017 |
| 出版者 | American Society of Mechanical Engineers |
| ISBN（電子版） | 9780791858103 |
| DOI | |
| 出版物ステータス | Published - 2017 1 1 |
| イベント | ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017 - San Francisco, United States 継続期間: 2017 8 29 → 2017 8 30 |
Other
| Other | ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017 |
|---|---|
| 国 | United States |
| 市 | San Francisco |
| 期間 | 17/8/29 → 17/8/30 |
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ASJC Scopus subject areas
- Control and Systems Engineering
- Information Systems
- Hardware and Architecture
これを引用
HAMR emulation on carbon overcoat and lubricant for near field transducer and magnetic media using surface-enhanced Raman sensors. / Yanagisawa, M.; Kunimoto, Masahiro; Homma, Takayuki.
ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017. American Society of Mechanical Engineers, 2017.研究成果: Conference contribution
}
TY - GEN
T1 - HAMR emulation on carbon overcoat and lubricant for near field transducer and magnetic media using surface-enhanced Raman sensors
AU - Yanagisawa, M.
AU - Kunimoto, Masahiro
AU - Homma, Takayuki
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A plasmonic sensor is used for emulation of near field transducer (NFT). Some overcoat films (thickness of 1nm) were coated on Au nanoparticles (NPs) on a convex quartz glass substrate (plasmonic sensor). Heating behavior of the films was examined by laser heating using novel Raman spectroscopic tools, i.e. surface-enhanced Raman scattering (SERS) with the plasmonic sensor, a continuous laser heating tool, in-situ observation of spectra and temperature with a high speed time-resolved measurement. The heating temperature of tetrahedral carbon (ta-C) film in He gas is lower than that in air. This is because the thermal conductivity of He is larger than air. Few spectral change of ta-C film (thickness of 1nm) on Au NP’s is observed except initial change in around 100 s at the temperature around 500?, which corresponds to the temperature of the carbon overcoat (COC) for the media temperature of 327? (600K, Currie temperature for CoPt alloy). Some carbide films, i.e. SiC, TiC, and WC, showed high heat resistance, that is, few spectral change was observed. It is found that lubricant is evaporated from the COC on magnetic media and transferred to the plasmonic sensor.
AB - A plasmonic sensor is used for emulation of near field transducer (NFT). Some overcoat films (thickness of 1nm) were coated on Au nanoparticles (NPs) on a convex quartz glass substrate (plasmonic sensor). Heating behavior of the films was examined by laser heating using novel Raman spectroscopic tools, i.e. surface-enhanced Raman scattering (SERS) with the plasmonic sensor, a continuous laser heating tool, in-situ observation of spectra and temperature with a high speed time-resolved measurement. The heating temperature of tetrahedral carbon (ta-C) film in He gas is lower than that in air. This is because the thermal conductivity of He is larger than air. Few spectral change of ta-C film (thickness of 1nm) on Au NP’s is observed except initial change in around 100 s at the temperature around 500?, which corresponds to the temperature of the carbon overcoat (COC) for the media temperature of 327? (600K, Currie temperature for CoPt alloy). Some carbide films, i.e. SiC, TiC, and WC, showed high heat resistance, that is, few spectral change was observed. It is found that lubricant is evaporated from the COC on magnetic media and transferred to the plasmonic sensor.
UR - http://www.scopus.com/inward/record.url?scp=85034815276&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034815276&partnerID=8YFLogxK
U2 - 10.1115/ISPS2017-5431
DO - 10.1115/ISPS2017-5431
M3 - Conference contribution
AN - SCOPUS:85034815276
BT - ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017
PB - American Society of Mechanical Engineers
ER -