1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Dynamic electronic response of a quantum dot driven by time-dependent voltage
Rent:
Rent this article for
USD
10.1063/1.3010886
/content/aip/journal/jcp/129/18/10.1063/1.3010886
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/18/10.1063/1.3010886
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Transient current responses to various types of external voltages. The solid (dashed) curves represent the time-dependent current [energy shift ]. The parameters adopted (in unit of meV) are as follows: , , , and . The switch-on voltages are (a) a step function, (b) a square pulse, (c) an exponential function, (d) a sinusoidal function, (e) a symmetric Gaussian function, and (f) an asymmetric Gaussian function with the same peak amplitude .

Image of FIG. 2.
FIG. 2.

Transient current responses to an asymmetric Gaussian voltage pulse (see the inset) under various temperatures. The parameters are , and the rests in unit of meV: , , and .

Image of FIG. 3.
FIG. 3.

(a) Real and (b) imaginary parts of frequency-dependent admittance under various temperatures. Same parameters are adopted as in Fig. 2.

Image of FIG. 4.
FIG. 4.

as a function of under various temperatures. Other parameters (in unit of meV) are and . The inset plots as a function of a dimensionless quantity .

Image of FIG. 5.
FIG. 5.

(a) Real and (b) imaginary parts of for various off-resonant cases. The parameters are , , , and the rests in unit of meV: , , , and . In both (a) and (b), the lines represent different in unit of meV.

Image of FIG. 6.
FIG. 6.

Scaled transient currents under asymmetric Gaussian voltages of different amplitudes. The parameters are , , , and the rests in unit of meV: , , and .

Image of FIG. 7.
FIG. 7.

(a) Real and (b) imaginary parts of under Gaussian voltages of different amplitudes. For both (a) and (b), the lines represent different in unit of meV. Same parameters are adopted as in Fig. 6. In both panels the lines are separated vertically by for clarity.

Image of FIG. 8.
FIG. 8.

Transient current responses to a step-function voltage. The lines represent different bandwidths. The inset shows the real part of . Other parameters (in unit of meV) are , , , and .

Image of FIG. 9.
FIG. 9.

(a) Real and (b) imaginary parts of under a step-function voltage of . The lines represent different in unit of meV. The inset magnifies the down-right corner of panel (b). The other parameters (in unit of meV) are , , and .

Image of FIG. 10.
FIG. 10.

Transient current responses to a delta-function voltage. The lines represent different bandwidths. Other parameters (in unit of meV) are , , , and .

Image of FIG. 11.
FIG. 11.

(a) Real and (b) imaginary parts of under a delta-function voltage. Results with finite correspond to in Fig. 10. The common parameters (in unit of meV) are , , and .

Image of FIG. 12.
FIG. 12.

Transient currents through -lead, , in response to a step-function voltage pulse applied on -lead. The lines correspond to different voltage amplitudes. Other parameters are , , and . This figure reproduces Fig. 1 in Ref. 31.

Loading

Article metrics loading...

/content/aip/journal/jcp/129/18/10.1063/1.3010886
2008-11-13
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dynamic electronic response of a quantum dot driven by time-dependent voltage
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/18/10.1063/1.3010886
10.1063/1.3010886
SEARCH_EXPAND_ITEM