Invention Grant
- Patent Title: Chemically ordered, cobalt-three platinum alloys for magnetic recording
- Patent Title (中): 化学有序的钴三铂合金用于磁记录
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Application No.: US10374641Application Date: 2003-02-26
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Publication No.: US07186471B2Publication Date: 2007-03-06
- Inventor: Bin Lu , Dieter Weller
- Applicant: Bin Lu , Dieter Weller
- Applicant Address: US CA Scotts Valley
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Scotts Valley
- Agency: Patterson & Sheridan, LLP
- Agent Carol Bordas-Loutzenhiser
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/70
Abstract:
A magnetic recording layer having polycrystalline chemical ordered (COX)3Pt or (COX)3PtY alloys. The additive X comprises Sc, Ti, V, Cr, Mn, Ni, Cu, Zn, Ga, Ge, Nb, Mo, Ru, Rh, Pd, Ag, Cd, In, Sn, Hf, Ta, W, Re, Os, B, or C, or any combination thereof. The additive Y comprises B, MgO, Al2O3, SiO2, P, CaO, CoO, B2O3, ZnO, NbO, Mo2O3, Co2O3, C, Cr, P, TiO2, Cr2O3, MnO, ZrO2, or BaO. The ratio of (CoX) to Pt is 2.33 to 4.00, plus or minus 5%. The additive Y may range from approximately 0 to 20% of the entire composition. The magnetic layer may be a constituent layer in a hard disc drive magnetic recording medium.
Public/Granted literature
- US20030162055A1 Chemically ordered, cobalt-three platinum alloys for magnetic recording Public/Granted day:2003-08-28
Information query
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