2013 Fiscal Year Final Research Report
Development of spin-polarized pulsed TEM and the application of spin-resolved analysis
| Project/Area Number |
21221005
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural science
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| Research Institution | Nagoya University |
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Principal Investigator |
TANAKA Nobuo 名古屋大学, エコトピア科学研究所, 教授 (40126876)
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| Co-Investigator(Kenkyū-buntansha) |
竹田 美和 名古屋大学, 工学研究科, 名誉教授 (20111932)
浅野 秀文 名古屋大学, 工学研究科, 教授 (50262853)
齋藤 晃 名古屋大学, エコトピア科学研究所, 准教授 (50292280)
桑原 真人 名古屋大学, エコトピア科学研究所, 助教 (50377933)
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| Project Period (FY) |
2009-05-11 – 2014-03-31
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| Keywords | 電子顕微鏡 / スピンエレクトロニクス / 量子ビーム |
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| Research Abstract |
We have succeeded in a development of Spin-polarized and Pulsed TEM (SP-TEM) for the first time in the world. The SP-TEM has realized high performances of 90-% spin-polarization, 10-7-A/cm2sr brightness, 1.6-nm spatial resolution and less 240-meV energy spread with a beam energy of 30 keV simultaneously. It can provide a TEM image and diffraction pattern of iron thin film. Furthermore we have observed a pico-second pulsed electron beam in the SP-TEM. These results indicate that spatial-, temporal- and spin-resolved measurement is realized in this research program. It is amazing apparatus that the narrow line-width of zero-loss peak, the long spatial coherence length and the high spin-polarization are realized simultaneously. The abilities are useful to open a frontier of analytical method and research new physics and new material sciences.
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[Presentation] スピン偏極パルスTEM2013
Author(s)
桑原真人, 楠総一郎, 南保由人,鮫島健輔, 齋藤晃, 宇治原徹, 浅野秀文, 竹田美和, 田中信夫
Organizer
日本顕微鏡学会第57回シンポジウム
Place of Presentation
ウインクあいち
Year and Date
2013-11-16
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