Fine structure of two-electron states in single and double quantum dots

Details Fine structure of two-electron states in single and double quantum dots Fine structure of two-electron states in single and double quantum dots

2009-08-21

arxiv.org/abs/0908.3104v2

J. Phys.: Condens. Matter 22, 025301 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 6 figures

Scientific paper

10.1088/0953-8984/22/2/025301

Energy spectrum fine structure of triplet two-electron states is investigated theoretically. Spin-orbit interaction induced terms in the effective Hamiltonian of electron-electron interaction are derived for zinc-blende lattice semiconductor nanostructures: quantum wells and quantum dots. The effects of bulk and structural inversion asymmetry are taken into account. Simple analytical expressions describing the splittings of the two-electron states localized in a single quantum dot and in a lateral double quantum dot are derived. The spin degeneracy of triplet states is shown to be completely lifted by the spin-orbit interaction. An interplay of the conduction band spin splitting and the spin-orbit terms in electron-electron interaction is discussed. The photoluminescence spectra of hot trions and of doubly charged excitons are calculated and are shown to reveal the fine structure of two-electron states.

Affiliated with

Also associated with

No associations

Rating

Fine structure of two-electron states in single and double quantum dots 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 Fine structure of two-electron states in single and double quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine structure of two-electron states in single and double quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-666615