发明名称 |
Engineered Magnetic Layer with Improved Perpendicular Anisotropy using Glassing Agents for Spintronic Applications |
摘要 |
A magnetic element in a spintronic device or serving as a propagation medium in a domain wall motion device is disclosed wherein first and second interfaces of a free layer with a perpendicular Hk enhancing layer and tunnel barrier, respectively, produce enhanced surface perpendicular anisotropy to increase thermal stability in a magnetic tunnel junction. The free layer may be a single layer or a composite and is comprised of a glassing agent that has a first concentration in a middle portion thereof and a second concentration less than the first concentration in regions near first and second interfaces. A CoFeB free layer selectively crystallizes along first and second interfaces but maintains an amorphous character in a middle region containing a glass agent providing the annealing temperature is less than the crystallization temperature of the middle region. |
申请公布号 |
US2013221460(A1) |
申请公布日期 |
2013.08.29 |
申请号 |
US201213548859 |
申请日期 |
2012.07.13 |
申请人 |
JAN GUENOLE;WANG YU-JEN;TONG RU-YING;HEADWAY TECHNOLOGIES, INC. |
发明人 |
JAN GUENOLE;WANG YU-JEN;TONG RU-YING |
分类号 |
H01L29/82;H01L21/02 |
主分类号 |
H01L29/82 |
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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