Material selection and disc structure optimization studies for super-resolution readout with PtOx recording layer

Abstract

Selecting a binary compound (Sb-Te, Zn-Sb and Ge-Te) with its composition at around a eutectic point generated a better super-resolution effect. The thickness optimization of the super-resolution readout layer was also effective for the property improvement. The temperature estimation indicated thinner the layer thickness is better as far as the readout laser can easily increase its temperature.