Experimental imaging and atomistic modeling of electron and hole quasiparticle wave functions in InAs/GaAs quantum dots
Abstract
We present experimental magnetotunneling results and atomistic pseudopotential calculations of quasiparticle electron and hole wave functions of self-assembled InAs/GaAs quantum dots. The combination of a predictive theory along with the experimental results allows us to gain direct insight into the quantum states. We monitor the effects of (i) correlations, (ii) atomistic symmetry, and (iii) piezoelectricity on the confined carriers and (iv) observe a peculiar charging sequence of holes that violates the Aufbau principle.
- Publication:
-
Physical Review B
- Pub Date:
- August 2007
- DOI:
- arXiv:
- arXiv:0707.1868
- Bibcode:
- 2007PhRvB..76g5338B
- Keywords:
-
- 73.21.La;
- 78.67.Bf;
- 78.67.Hc;
- Quantum dots;
- Nanocrystals and nanoparticles;
- Condensed Matter - Materials Science
- E-Print:
- Submitted to Physical Review B. A version of this paper with figures can be found at http://www.sst.nrel.gov/nano_pub/mts_preprint.pdf