Forming a high performance Co/Pt disk

摘要

A method of forming a magneto-optical medium is disclosed. The method includes providing a seed layer on a substrate and forming a recording multilayer which includes sputtering at a pressure of greater than 15 mT alternating layers of Co/Pt to deposit them on said seed layer wherein the seed layer is deposited at sputtering pressure of less than 5 mT and the seed layer material is selected to improve the coercivity and squareness of the Kerr hysteresis loop of the recording multilayer. <IMAGE>