CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

Ground States and Excited States in a Tunable Graphene Quantum Dot

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2011 Chinese Physical Society and IOP Publishing Ltd
, , Citation Wang Lin-Jun et al 2011 Chinese Phys. Lett. 28 067301 DOI 10.1088/0256-307X/28/6/067301

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1 Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026

Dates

  1. Received 11 July 2010
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0256-307X/28/6/067301

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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