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.
Synthesis of electron transmission in nanoscale semiconductor devices
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

A rectangular potential barrier of energy and width gives rise to rapid increase in electron transmission with increasing voltage bias, and resonances. Effective electron mass is , where is the bare electron mass. (a) Conduction band profile of the rectangular potential barrier for the indicated values of . (b) Transmission probability as a function of for an electron of energy incident from the left.

Image of FIG. 2.
FIG. 2.

(a) and (c) are solutions from exhaustive numerical searches for conduction band profiles that yield linear and square dependences of electron transmission as a function of bias voltage, . is constrained to a region that is 10 nm wide and the maximum local potential is 0.3 eV. The resulting for an electron of energy incident from the left are shown as solid line in (b) and (d). Broken line is target response.

Image of FIG. 3.
FIG. 3.

(a) Evolution from a single potential barrier to an array of barriers. (b) for the potentials in (a). The superposition of broad resonances enables a linear transmission-voltage response. (i) single rectangular barrier of 4 nm, (ii) 4 nm wide barrier with a step, (iii) same as (ii) plus 1 nm wide small barrier, (iv) optimized potential profile. (c) Changes of 1–2 monolayers at the initial highest barrier mainly alters the slope of the transmission curve, i.e., the resistance. (d) Randomly selected 0, , and monolayer changes at all interfaces only lead to small deviations in . The characteristic variation in is .


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Synthesis of electron transmission in nanoscale semiconductor devices