2010 Fiscal Year Final Research Report
Microwave-assisted magnetization reversal of perpendicularly magnetized nanoscale magnetic dot and its applications to nonvolatile memories
| Project/Area Number |
20686025
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Kyushu University |
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Principal Investigator |
NOZAKI Yukio Kyushu University, 理工学部, 准教授 (30304760)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 強磁性共鳴 / マイクロ波アシスト記録 / 垂直磁気記録 / 垂直磁気異方性 |
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| Research Abstract |
The purpose of this research project is to realize a microwave-assisted magnetization reversal in perpendicularly magnetized films with a large magnetic anisotropy. The results are summarized as follows : (1) The geometrical design of coplanar waveguide producing a microwave field was optimized to be able to realize the microwave-assisted magnetization reversal. (2) It was experimentally confirmed that the magnetization reversal of Co/Pd multilayer with a perpendicular magnetic anisotropy was encouraged by the application of microwave field with a frequency of 10% lower than the intrinsic ferromagnetic resonance frequency.
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