| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Ground States and Excited States in a Tunable Graphene Quantum Dot |
| WANG Lin-Jun, CAO Gang, TU Tao**, LI Hai-Ou, ZHOU Cheng, HAO Xiao-Jie, GUO Guang-Can, GUO Guo-Ping**
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Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026
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| Cite this article: |
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WANG Lin-Jun, CAO Gang, TU Tao et al 2011 Chin. Phys. Lett. 28 067301 |
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Abstract We prepare an etched gate tunable quantum dot in single-layer graphene and present transport measurement in this system. We extract the information of the ground states and excited states of the graphene quantum dot, as denoted by the presence of characteristic Coulomb blockade diamond diagrams. The results demonstrate that the quantum dot in single-layer graphene bodes well for future quantum transport study and quantum computing applications.
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| Keywords:
73.22.-f
72.80.Rj
73.21.La
75.70.Ak
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Received: 11 July 2010
Published: 29 May 2011
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| PACS: |
73.22.-f
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(Electronic structure of nanoscale materials and related systems)
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72.80.Rj
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(Fullerenes and related materials)
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73.21.La
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(Quantum dots)
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75.70.Ak
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(Magnetic properties of monolayers and thin films)
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