| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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The Unconventional Influence of a Nearby Molecule onto Transport of Single C$_{60}$ Molecule Transistor |
| Xiao Guo1,2, Wen-jie Liang1,2,3** |
1Beijing National Center for Condensed Matter Physics, Beijing Key Laboratory for Nanomaterials and Nanodevices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2CAS Center of Excellence in Topological Quantum Computation and School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190
3Songshan Lake Materials Laboratory, Dongguan 523808
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| Cite this article: |
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Xiao Guo, Wen-jie Liang 2019 Chin. Phys. Lett. 36 127301 |
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Abstract We study the transport property of single C$_{60}$ molecular transistors with special focus on the situation that other molecules are in vicinity. The devices are prepared using electromigration and thermal deposition techniques. Pure single C$_{60}$ molecule transistors show typical coulomb blockade behavior at low temperature. When we increase the coverage of molecules slightly by extending the deposition time, the transport spectrum of devices displays a switching behavior in the general coulomb blockade pattern. We attribute this unconventional phenomenon to the influence from a nearby C$_{60}$ molecule. By analyzing this transport behavior quantitatively based on the parallel-double-quantum-dot model, the interaction from the nearby molecule is proved to be of capacity and tunneling coupling. Thermal stimulation is also applied to the device to investigate the effect of local charging environment variation on intermolecular interaction.
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Received: 18 October 2019
Published: 05 November 2019
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| PACS: |
73.63.Kv
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(Quantum dots)
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73.23.Hk
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(Coulomb blockade; single-electron tunneling)
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85.65.+h
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(Molecular electronic devices)
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| Fund: Supported by the National Key R&D Program of China (2016YFA0200800), the Strategic Priority Research Program of Chinese Academy of Sciences under Grant Nos XDB30000000 and XDB07030100, the Sinopec Innovation Scheme (A-381), and the Rise-Sinopec Fund (No 10010104-18-ZC0609-0003). |
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