2014 Fiscal Year Final Research Report
Development and application of high speed, high accuracy, and time-dependent spin dynamics imaging measurement system
| Project/Area Number |
24340070
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Keio University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 高速スピン制御 / テラヘルツ波 |
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| Outline of Final Research Achievements |
We developed a technology in order to measure a dynamic behavior of the magnetic structure induced by the intense terahertz pulse irradiation. We developed a magneto-optic imaging microscope system and current-induced rectifying signal measurement system in order to probe the static and dynamic behavior of the vortex core in a thin-film permalloy disk sample. We applied an intense terahertz pulse field to the sample, and investigate the structural change. Moreover, we developed a terahertz polarization measurement system for the future magnetic control by using the polarized terahertz electromagnetic field.
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| Free Research Field |
光物性物理学
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