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Research PapersNo Access

COULOMB BLOCKADE IN GRAPHENE QUANTUM DOTS

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

Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

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

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

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

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

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

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

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https://doi.org/10.1142/S0217984913500085Cited by:7 (Source: Crossref)

Abstract

We study the conductance spectrum of graphene quantum dots, both single- and multiple-dot cases. The single electron tunneling through a graphene dot is investigated and the periodicity, amplitude and line shape of the Coulomb blockade oscillations at low temperatures are obtained, which are consistent with the recent experimental observations. Further, we discuss the transport behavior when multiple dots are assembled in array and find a phase transition of conductance spectra from individual Coulomb blockade to collective Coulomb blockade.

Keywords:

PACS: 73.63.Kv, 73.22.Pr, 73.63.-b, 81.05.ue

References

A. K. Geim and K. S. Novoselov, Nat. Mater. 6, 183 (2008), DOI: 10.1038/nmat1849. Crossref, Web of Science, ADS, Google Scholar
A. H. Castro Netoet al., Rev. Mod. Phys. 81, 109 (2009), DOI: 10.1103/RevModPhys.81.109. Crossref, Web of Science, ADS, Google Scholar
B. Trauzettelet al., Nat. Phys. 3, 192 (2007), DOI: 10.1038/nphys544. Crossref, Web of Science, Google Scholar
G. P. Guoet al., New J. Phys. 11, 123005 (2009), DOI: 10.1088/1367-2630/11/12/123005. Crossref, Web of Science, Google Scholar
P. G. Silvestrov and K. B. Efetov, Phys. Rev. Lett. 98, 016802 (2007), DOI: 10.1103/PhysRevLett.98.016802. Crossref, Web of Science, Google Scholar
J. M. Pereiraet al., Nano Lett. 7, 946 (2007). Crossref, Web of Science, ADS, Google Scholar
A. De Martinoet al., Phys. Rev. Lett. 98, 066802 (2007), DOI: 10.1103/PhysRevLett.98.066802. Crossref, Web of Science, Google Scholar
L. Pononmarenkoet al., Science 320, 356 (2008). Crossref, Web of Science, ADS, Google Scholar
C. Stampferet al., Appl. Phys. Lett. 92, 012102 (2008), DOI: 10.1063/1.2827188. Crossref, Web of Science, Google Scholar
L. J. Wanget al., Appl. Phys. Lett. 97, 262113 (2010), DOI: 10.1063/1.3533021. Crossref, Web of Science, ADS, Google Scholar
L. J. Wanget al., Chin. Phys. Lett. 28, 067301 (2010). Crossref, Web of Science, Google Scholar
L. J. Wanget al., Appl. Phys. Lett. 99, 112117 (2011), DOI: 10.1063/1.3638471. Crossref, Web of Science, ADS, Google Scholar
L. J. Wanget al., Appl. Phys. Lett. 100, 022106 (2012), DOI: 10.1063/1.3676083. Crossref, Web of Science, Google Scholar
J. H. Bardarsonet al., Phys. Rev. Lett. 102, 226803 (2009), DOI: 10.1103/PhysRevLett.102.226803. Crossref, Web of Science, ADS, Google Scholar
J. Wurmet al., Phys. Rev. Lett. 102, 056806 (2009), DOI: 10.1103/PhysRevLett.102.056806. Crossref, Web of Science, Google Scholar
C. W. J. Bennakker, Phys. Rev. B 44, 1646 (1990). Crossref, Web of Science, ADS, Google Scholar
C. Stampferet al., Phys. Rev. Lett. 102, 056403 (2009), DOI: 10.1103/PhysRevLett.102.056403. Crossref, Web of Science, Google Scholar
H.-Y. Chenet al., Phys. Rev. Lett. 98, 186803 (2007), DOI: 10.1103/PhysRevLett.98.186803. Crossref, Web of Science, Google Scholar
C. A. Stafford and S. Das Sarma, Phys. Rev. Lett. 72, 3590 (1994), DOI: 10.1103/PhysRevLett.72.3590. Crossref, Web of Science, ADS, Google Scholar
E. Dagottoet al., Phys. Rev. Lett. 67, 1918 (1991), DOI: 10.1103/PhysRevLett.67.1918. Crossref, Web of Science, Google Scholar

Journal cover image

Vol. 27, No. 01

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History

Received 25 September 2012

Revised 20 October 2012

Accepted 25 October 2012

Published: 23 November 2012

Keywords