Room-temperature oxidation of ultrathin TiB2 films

Autor: J. F. Sullivan, John A. Barnard, Mark L. Weaver, Feng Huang, W. J. Liu
Rok vydání: 2002
Předmět:
Zdroj: Journal of Materials Research. 17:805-813
ISSN: 2044-5326
0884-2914
Popis: Titanium diboride has been claimed as a very promising candidate material for protective applications in the magnetic recording. Its oxidation resistance at room temperature is a critical criterion in assessing this application potential. In this paper, the oxidation characteristics of ultrathin TiB2 thin films, such as overcoat erosion and oxide thickness, are investigated via a combination of x-ray reflectivity, x-ray photoelectron spectroscopy (XPS), and atomic force microscopy. It was found that a 2 overcoats, coupled with the existence of a sharp oxide/TiB2 interface. XPS studies confirmed the existence of the oxides. Considering the decreasing allowable thickness for such protective overcoats, oxidation and the resultant thickness gain negate such a potential of ultrathin TiB2 films. The results in our current report provide a new perspective on its potential as protective overcoats in magnetic recording.
Databáze: OpenAIRE