Invention Grant
- Patent Title: Composite heat assisted magnetic recording media with temperature tuned intergranular exchange
- Patent Title (中): 具有温度调节晶间交换的复合热辅助磁记录介质
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Application No.: US11336799Application Date: 2006-01-20
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Publication No.: US07678476B2Publication Date: 2010-03-16
- Inventor: Dieter Klaus Weller , Edward Charles Gage , Ganping Ju , Bin Lu
- Applicant: Dieter Klaus Weller , Edward Charles Gage , Ganping Ju , Bin Lu
- Applicant Address: US CA Scotts Valley
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Scotts Valley
- Agency: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
- Agent Robert P. Lenart, Esq.
- Main IPC: G11B5/66
- IPC: G11B5/66
Abstract:
A thin film structure comprises a first layer including a first plurality of grains of magnetic material having a first intergranular exchange coupling, and a second layer positioned adjacent to the first layer and including a second plurality of grains of magnetic material having a second intergranular exchange coupling, wherein the second intergranular exchange coupling is larger than the first intergranular exchange coupling and wherein the Curie temperature of the first layer is greater than the Curie temperature of the second layer. A data storage system including the thin film structure is also provided.
Public/Granted literature
- US20070172705A1 Composite heat assisted magnetic recording media with temperature tuned intergranular exchange Public/Granted day:2007-07-26
Information query
IPC分类:
