2013 Fiscal Year Final Research Report
Study of high-frequency conduction through single-atom contacts and single-molecule junctions
| Project/Area Number |
23310067
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanostructural science
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| Research Institution | Kyoto University |
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Principal Investigator |
SAKAI Akira 京都大学, 工学(系)研究科(研究院), 教授 (80143543)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 単原子接点・単分子架橋 / 交流伝導 |
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| Research Abstract |
Measurements have been made on the high-frequency electric conduction through Au single-atom contacts and Au/BDT/Au single-molecule junctions. Junctions are prepared using the break-junction method and their signal transmission characteristics up to 1GHz have been measured with a network analyzer. It is found that both the imaginary part of the admittance of Au/BDT/Au single-molecule junctions and the phase of the S21 parameter of Au single-atom contacts exhibit a flat spectrum and remain zero up to 1GHz. The results indicate that these atom- and molecule-sized junctions behave as pure resistance in the RF regime.
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