Thin film media with a dual seed layer of RuAI/NiAIB

Details Thin film media with a dual seed layer of RuAI/NiAIB Thin film media with a dual seed layer of RuAI/NiAIB

2005-03-08

2005-03-08

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

C428S668000, C428S690000, C428S690000

Reexamination Certificate

active

06863993

ABSTRACT:
A thin film structure for a magnetic thin film recording medium including a dual seed layer of RuAl/NiAlB is disclosed. The use of the RuAl/NiAlB structure provides reduced grain size, an increased Mrt orientation ratio (OR), increased SNR and lower PW50 at higher amplitude. The RuAl and NiAlB seed layers each have a B2 crystallographic structure. The RuAl/NiAlB dual seed layer can be used to obtain an underlayer with a preferred in-plane orientation of (200) and a cobalt alloy magnetic film with the preferred in-plane orientation of (11{overscore ( )}20).

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patent: 20010024742 (2001-09-01), Bian et al.
patent: 20030203244 (2003-10-01), Hideki et al.

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