Tunneling transport through a biased quantum dot–quantum well system: Photon-induced negative differential conductance

2007 ◽  
Vol 75 (4) ◽  
Author(s):  
V. M. Apalkov
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Differential Conductance ◽  
Negative Differential Conductance ◽  
Tunneling Transport

scholarly journals Negative differential conductance in a quantum dot and possible application to ESR detection

2009 ◽  
Vol 150 (2) ◽  
pp. 022026 ◽  
Author(s):  
K Hitachi ◽  
A Inoue ◽  
A Oiwa ◽  
M Yamamoto ◽  
M Pioro-Ladriere ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Differential Conductance ◽  
Negative Differential Conductance

scholarly journals Tunable spin-dependent transport in the dot–ring nanostructure

2018 ◽  
Vol 32 (17) ◽  
pp. 1840029
Author(s):  
B. Kȩdzierska ◽  
A. Gorczyca-Goraj ◽  
E. Zipper ◽  
M. M. Maśka
Keyword(s):  
Quantum Dot ◽  
Gate Voltage ◽  
Differential Conductance ◽  
Model Parameters ◽  
Negative Differential Conductance ◽  
Confining Potential ◽  
Spin Dependent Transport ◽  
Dependent Transport

We study spin-dependent transport through a quantum nanostructure composed of a quantum dot (QD) surrounded by a quantum nanoring. The nanostructure is side-attached to source and drain electrodes and we assume that the confining potential that forms the nanostructure can be controlled by electrical gating. We demonstrate that depending on the model parameters the system can exhibit positive as well as negative differential conductance (NDC). What is more interesting, these properties can be easily controlled by tuning the applied gate voltage.

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