Single-Electron Tunneling in Coupled Quantum Dots

1992 ◽  
Vol 31 (Part 2, No. 6B) ◽  
pp. L759-L761 ◽  
Author(s):  
Shingo Katsumoto ◽  
Naokatsu Sano ◽  
Shun-ichi Kobayashi
Keyword(s):  
Quantum Dots ◽  
Electron Tunneling ◽  
Single Electron ◽  
Coupled Quantum Dots ◽  
Single Electron Tunneling

scholarly journals COULOMB BLOCKADE IN GRAPHENE QUANTUM DOTS

2012 ◽  
Vol 27 (01) ◽  
pp. 1350008 ◽  
Author(s):  
QIONG MA ◽  
TAO TU ◽  
LI WANG ◽  
CHEN ZHOU ◽  
ZHI-RONG LIN ◽  
...  
Keyword(s):  
Phase Transition ◽  
Quantum Dots ◽  
Line Shape ◽  
Low Temperatures ◽  
Coulomb Blockade ◽  
Electron Tunneling ◽  
Graphene Quantum Dots ◽  
Single Electron ◽  
Single Electron Tunneling ◽  
Conductance Spectrum

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.

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