| Project/Area Number |
23655133
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional materials chemistry
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| Research Institution | Osaka City University |
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Principal Investigator |
TEKI YOSHIO 大阪市立大学, 理学(系)研究科(研究院), 教授 (00180068)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 電子スピン共鳴 / 分子デバイス測定 / 時間分解ＥＳＲ / 高速ＤＳＰロックインアンプ / 高速ロックイン検出 / 電流検出 / 分子素子 / 薄膜試料 / スピントロニクス / 高感度化 / ESR / 分子エレクトロニクス / 時間領域測定 / 微小試料 / πラジカル / 電子スピン / 有機薄膜 |
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| Research Abstract |
The aim of this research is to develop ESR apparatus which can apply easily for molecular device or spintronics researches by a minimum modification of the commercial ESR apparatus. A commercial high-speed DSP lock-in amplifier and the home-made external field-modulation unit was used for the detection. The sensitivity improvement of the time-resolved ESR was carried out using high-speed phase-sensitive detection until 1 micro second of time-constant. As the results, the sensitivity improvement was achieved to some extent but some points of issue to solve were clarified. We have also made a simple electric circuit and a detection prove which can measure the electrical detection of ESR signal for the devices using the same ESR apparatus using the DSP lock-in amplifier. We made home-made programs, which control all apparatus and make the measurements of a variety of ESR possible. Furthermore, we modified the program to use for a spin-pumping that is a recent hot topic in the spintronics.
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