Seagate Technology Incorporated

Roger Ristau

Samuel Dacke Harkness

Rajiv Yadav Ranjan

Jing Gui

Erol Girt

Li-Lien Lee

Raj Thangaraj

Gary Clark Rauch

A magnetic recording medium on glass or Al substrates with a film structure of Cr&mdash;X or (Cr&mdash;X)O seedlayer/underlayer/magnetic layer/carbon overcoat, in which the solid solubility of X is at least 3 atomic percent in Cr, the heat of oxide formation of X is less than that of Cr or a lattice tuning capability of X is at least % that of Cr and a manufacturing process thereof are disclosed.

Chromium-alloy seedlayers for recording media

Magnetic recording media having enhanced coupling between magnetic layers

Corrosion resistant magnetic thin film media are fabricated using a CoCr magnetic layer having a stabilized protective chromium oxide film thereon. Stabilization of the protective chromium oxide film is achieved by incorporating a stabilizing element, such as Mo, V, Mn, Nb, Ni or Si, in the magnetic layer, thereby enabling elimination of the protective overcoat, e.g., C-containing protective overcoat, or forming the protective overcoat at a significantly low thickness of less than about 20 &angst;, e.g., up to about 1 &angst;. Embodiments include forming a magnetic layer comprising Co and Cr on an underlayer, and then forming a thin magnetic layer containing Co and Cr with the chromium oxide stabilizing element thereon. Embodiments further include introducing the chromium oxide stabilizing element by diffusion or ion implantation into a sputter deposited Co&mdash;Cr magnetic alloy layer.

Corrosion resistant magnetic thin film media

A perpendicular magnetic recording medium having a substrate and an annealed magnetic layer comprising boron on the substrate, the magnetic layer being a single film and having an L1 structure, and a process for manufacturing the perpendicular magnetic recording medium are disclosed.

Perpendicular recording media with enhanced coercivity

Growing community of inventors

Livermore, CA, United States of America

Roger Ristau