Investigation of Temperature Dependence of Raman Shift of Diamond-Like Carbon Coatings Used in Heat-Assisted Magnetic Recording

The G peak position and structural changes of diamond-like carbon (DLC) are investigated as a function of temperature using Raman spectroscopy. Structural changes and surface oxidation are studied by comparing Raman spectra at room temperature with Raman spectra at high temperature. The use of Raman...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 51; no. 11; pp. 1 - 4
Main Authors Longqiu Li, Suen, Benjamin, Talke, Frank E.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Calibration
Carbon
Coatings
Cooling
Diamond-like Carbon
Diamond-like carbon films
head disk interface
Heat-assisted magnetic recording
Heating
Magnetic recording
Magnetism
Oxidation
Raman scattering
Raman shift
Raman spectra
Raman spectroscopy
Temperature dependence
Temperature measurement
Temperature profiles
heat-assisted magnetic recording (HAMR)
Diamond-like carbon (DLC)
Raman shift
head–disk interface
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Summary:The G peak position and structural changes of diamond-like carbon (DLC) are investigated as a function of temperature using Raman spectroscopy. Structural changes and surface oxidation are studied by comparing Raman spectra at room temperature with Raman spectra at high temperature. The use of Raman shift data of DLC for temperature calibration of the temperature profiles in heat-assisted magnetic recording using tip-enhanced Raman spectroscopy is discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2438298