CO PT DISKS WITH A SIMPLIFIED STRUCTURE

Potentially low cost Co/Pt multilayer disks were fabricated using a si mplified disk structure. Ultrathin seed layers of dielectrics were use d to enhance the coercivity and squareness of the Kerr hysteresis loop . Both Co/Pt superlattices and the dielectrics were deposited under lo w vacuum. The total cycle time consisting of loading the PC substrate into the vacuum chamber, pumping the sputtering chamber to a base pres sure, and deposition of the ITO seed layer and the Co/Pt multilayer wa s reduced to less than ten seconds. Cyclability and recording performa nce of the conventional media is retained.