| Project/Area Number |
24654115
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
OSHIMA Yugo 独立行政法人理化学研究所, 加藤分子物性研究室, 専任研究員 (10375107)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ナノチューブ・フラーレン / ナノ材料 / 物性実験 |
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| Research Abstract |
We have studied the transport mechanisms of carbon-based nano materials by use of non-contact method (Cavity Perturbation Technique). This non-contact method is promising for future studies of the carbon nanotubes since there is no problem of the contact resistance.
By applying this technique to a oriented thin films of single-walled carbon nanotubes (SWCNT), we have found that intrinsic transport properties is dominant for SWCNT thin film with low content ratio (0.5 wt%), and magneto transport effect such as Aharonov-Bohm effect was observed. On the other hand, for high-content ratio (above 5 wt%) where large amount of tube contacts exist inside the film, extrinsic transport effects such as the weak-localization or variable range hopping effect are relevant.
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