Tip-Enhanced Raman Spectroscopy Studies on Amorphous Carbon Films and Carbon Overcoats in Commercial Hard Disk Drives

Far-field Raman spectroscopy and tip-enhanced Raman spectroscopy were used to investigate 20-nm-thick amorphous carbon films and 3-nm-thick carbon overcoats of commercial hard disk drives. Enhancement of the Raman signal on both samples was observed indicating the activation of surface plasmons. The...

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Bibliographic Details
Published inTribology letters Vol. 66; no. 2; pp. 1 - 6
Main Authors Rosenkranz, Andreas, Freeman, Lindsay, Suen, Benjamin, Fainman, Yeshaiahu, Talke, Frank E.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2018
Springer Nature B.V
Subjects
Carbon
Chemistry and Materials Science
Corrosion and Coatings
Disk drives
Hard disks
Materials Science
Nanotechnology
Organic chemistry
Original Paper
Physical Chemistry
Plasmons
Raman spectroscopy
Spectroscopic analysis
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thick films
Thin Films
Tribology
Hard disk drives
Diamond-like carbon
Carbon overcoats
Tip-enhanced Raman spectroscopy
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Summary:Far-field Raman spectroscopy and tip-enhanced Raman spectroscopy were used to investigate 20-nm-thick amorphous carbon films and 3-nm-thick carbon overcoats of commercial hard disk drives. Enhancement of the Raman signal on both samples was observed indicating the activation of surface plasmons. The largest enhancement was found for the 3-nm-thick carbon overcoat of a commercial hard disk suggesting that the chemistry of nanometer-thick carbon films can be studied using tip-enhanced Raman spectroscopy with high sensitivity and resolution.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-018-1005-2