发明名称 |
Microscopic tips having stable magnetic moments and disposed on cantilevers for sensing magnetic characteristics of adjacent structures |
摘要 |
A magnetic force microscope (MFM) needle has a magnetic material with a magnetic moment that is pinned in a preferred direction. The magnetic moment can be of lower than conventional magnitude without risking an undesirable change in the direction of magnetization. The magnetic needle can have a ferromagnetic layer (or layers) that is stabilized by an antiferromagnetic layer (or layers). The needle can be employed as a magnetoresistance sensitivity microscope (MSM) to map the sensitivity of a magnetic sensor, such as a magnetoresistive (MR) or giant magnetoresistive (GMR) sensor. Alternatively, the needle can be employed in measuring magnetic fields, such as with a high frequency magnetic force microscope (HFMFM).
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申请公布号 |
US6448765(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US19990429783 |
申请日期 |
1999.10.28 |
申请人 |
READ-RITE CORPORATION |
发明人 |
CHEN HONG;CHIEN CHESTER XIAOWEN |
分类号 |
G01Q60/56;G01R33/038;(IPC1-7):G01R33/02 |
主分类号 |
G01Q60/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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