The quantum state depression effect in nanostructured quantum well

Details The quantum state depression effect in nanostructured quantum well The quantum state depression effect in nanostructured quantum well

2010-08-27

arxiv.org/abs/1008.4683v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages,7 figures

Scientific paper

Recently, quantum state depression was observed and studied in a quantum well with a nanostructured surface. Periodic ridges in the surface, forming a diffraction grating-like structure, impose additional boundary conditions on the electron wave function. Supplementary boundary conditions forbid some quantum states and reduce quantum state density. Owing to the Pauli Exclusion Principle, electrons rejected from the forbidden quantum states have to occupy states with higher energies. Thus, the chemical potential increases and becomes dependent on grating size. Geometry factor G was used to describe this dependence. G(E) was investigated and an approximate analytical expression for G was verified using the periodic orbit theory. In semiconductors, the G value can be adjusted using charge depletion. This allows carrier density and transport coefficients to be varied by applying external voltage or temperature gradient.

Affiliated with

Also associated with

No associations

Rating

The quantum state depression effect in nanostructured quantum well does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The quantum state depression effect in nanostructured quantum well, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The quantum state depression effect in nanostructured quantum well will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-331377