| Project/Area Number |
23740237
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
SHIOTA Tadashi 東京工業大学, 大学院・理工学研究科, 助教 (40343165)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | メゾスコピック系 / 金属単原子ワイヤー / ブレークジャンクション / 力学特性 / 単原子ワイヤー / 機械的特性 / 電流誘起力 |
|---|
| Research Abstract |
Simultaneous measurement system on mechanical and electrical properties of a metallic monatomic wire was built to study experimentally a current-induced force in the wire. The mechanically controllable break junction combined with a tuning fork as a force sensor was used. Measured values using the tuning fork were analyzed by several theoretical models, and the model showing a good quantitative approximation was determined. Mechanical and electrical properties of Au monatomic wires were measured under a low temperature. Although it was observed that the resonance frequency of the tuning fork was shifted due to monatomic wire formation, a clear bias-dependence of the mechanical properties measured was not found.
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