Title :
Magnetic and Recording Characteristics of Reactively Sputtered CoPtCr-(Si-O, Ti-O and Cr-O) Perpendicular Media
Author :
Choe, G. ; Roy, A. ; Yang, Z. ; Acharya, B. ; Abarra, E.
Author_Institution :
San Jose, San Jose
Abstract :
In this work, CoPtCr-oxide films were deposited with three types of oxide additives(Si-O, Cr-O, Ti-O). Their magnetic, grain morphological properties and oxidation kinetics were systematically studied by varying oxygen reactive sputter conditions and were correlated with PMR performance. CoPtCr-oxide media has been reported to have small grains with good magnetic decoupling for perpendicular recording media. More detailed recording performance including magnetic write width and thermal stability are discussed for all the media at different PO2.
Keywords :
chromium alloys; cobalt alloys; crystal microstructure; magnetic thin films; oxidation; perpendicular magnetic recording; platinum alloys; silicon compounds; sputtered coatings; thermal stability; titanium compounds; CoPtCr-CrO; CoPtCr-SiO; CoPtCr-TiO; PMR; grain morphological properties; magnetic decoupling; magnetic oxide films; magnetic write width; oxidation kinetics; oxide additives; oxygen reactive sputter conditions; perpendicular recording media; thermal stability; Additives; Chromium; Grain boundaries; Magnetic films; Magnetic properties; Magnetic recording; Magnetic separation; Morphology; Oxidation; Perpendicular magnetic recording;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375418
