Invention Grant
- Patent Title: Bit-patterned stack with antiferromagnetic shell
- Patent Title (中): 带有反铁磁壳的位图案堆叠
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Application No.: US12397457Application Date: 2009-03-04
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Publication No.: US08455117B2Publication Date: 2013-06-04
- Inventor: Kaizhong Gao , Haiwen Xi , Song Xue
- Applicant: Kaizhong Gao , Haiwen Xi , Song Xue
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Ladas & Parry, LLP
- Main IPC: H01L29/82
- IPC: H01L29/82 ; H01F10/32 ; G11B5/74 ; H01F10/00 ; H01L21/02
Abstract:
A method of producing bit-patterned media is provided whereby a shell structure is added on a bit-patterned media dot. The shell may be an antiferromagnetic material that will help stabilize the magnetization configuration at the remanent state due to exchange coupling between the dot and its shell. Therefore, this approach also improves the thermal stability of the media dot and helps each individual media dot maintain a single domain state.
Public/Granted literature
- US20100227202A1 BIT-PATTERNED MEDIA WITH ANTIFERROMAGNETIC SHELL Public/Granted day:2010-09-09
Information query
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