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

Author

Longqiu Li ; Suen, Benjamin ; Talke, Frank E.

Author_Institution

Univ. of California at San Diego, La Jolla, CA, USA

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

Raman spectra; coatings; diamond-like carbon; magnetic recording; oxidation; C; DLC; Raman shift data; diamond-like carbon coatings; heat-assisted magnetic recording; surface oxidation; temperature 293 K to 298 K; temperature calibration; temperature dependence; temperature function; tip-enhanced Raman spectroscopy; Carbon; Coatings; Cooling; Heat-assisted magnetic recording; Heating; Raman scattering; Temperature measurement; Diamond-like Carbon; Diamond-like carbon (DLC); Raman shift; head disk interface; head???disk interface; heat assisted magnetic recording; heat-assisted magnetic recording (HAMR);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2438298

Filename

7114271