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.
Current flow and energy dissipation in low-dimensional semiconductor superlattices
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

(a)–(b) SL potential profile and energy levels at low and high electric fields under a magnetic field applied parallel to the SL axis. (c) curves for sample vs . (d) dependence of the intensity of the current peak, , in . (e) dependence of the voltage position, , of the current peak.

Image of FIG. 2.
FIG. 2.

(a) Grey-scale plot of the differential conductance vs and at . Diagonal white lines show SCR conditions: , where , 2. The horizontal dotted line shows the MPR condition . Vertical dotted lines represent the optical phonon resonance (OPR) condition , where , 2. The OPR condition corresponds to dissipation of energy through LO phonon emission. (b)–(c) Schematic diagram of the inter-WSL level electron hopping process corresponding to the SCR and MPR conditions.

Image of FIG. 3.
FIG. 3.

Normalized inelastic scattering time vs (a) and Δ (b) for all our SLs. (c) Dependence of the ratio on for all our SLs. The continuous line describes a characteristic quenching behavior of the current with increasing , i.e., .


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Current flow and energy dissipation in low-dimensional semiconductor superlattices