Title :
Effects of Cr/Al underlayer on magnetic properties and crystallography in CoCrPtTa/Cr/Al thin films
Author :
Chang, H.S. ; Shin, K.H. ; Lee, T.D. ; Park, J.K.
Author_Institution :
Dept. of Mater. Sci. & Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
9/1/1996 12:00:00 AM
Abstract :
The effects of Cr/Al underlayers on the magnetic properties of CoCrPtTa films deposited on glass substrates were investigated. The coercivity increased and the coercivity squareness decreased by using Cr/Al underlayers. The cause of the coercivity increase is attributed to the reduction of Co(0002) texture, the increase of magnetic isolation of CoCrPtTa grains, and the refinement of CoCrPtTa grains deposited on Cr/Al underlayers. The effects of an Al overlayer on the magnetic properties of CoCrPtTa/Cr films were also studied. The decrease of coercivity squareness is ascribed to the magnetic isolation of CoCrPtTa grains
Keywords :
aluminium; chromium; chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; grain refinement; magnetic thin films; platinum alloys; tantalum alloys; CoCrPtTa-Cr-Al; CoCrPtTa/Cr/Al thin film; Cr/Al underlayer; coercivity; coercivity squareness; crystallography; glass substrate; grain refinement; magnetic isolation; magnetic properties; texture; Artificial intelligence; Chromium; Coercive force; Crystallography; Glass; Magnetic films; Magnetic properties; Substrates; Temperature; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
