Surface treatment of substrates for low-glide height magneto-optical media

Abstract

Very low glide height magneto-optical (LGMO) information storage and retrieval media of near field recording (NFR) and mahnetic super-resolution (MSR) types having improved tribological properties when used in ultra-high density storage/retrieval devices employing very small head flying heights on the order of less than about 2 microinches are formed in a front surface magneto-optical (FSMO) configuration utilizing a substrate having at least one deposition surface subjected to a two-step, synergistic treatment comprising tape burnishing/wiping and photolytic treatment in an ozone-containing atmosphere, followed by deposition thereon of the MO layer stack. Enhanced wear and abrasion resistance at very low flying head heights is provided by an ultra-thin, protective flash layer overcoat (FLO)/lubricant topcoat layer system on the media surface. Embodiments of the present invention include single- and dual-sided MO media.

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