PMID: 19113787Dec 31, 2008Paper

Diamagnetic response of exciton complexes in semiconductor quantum dots

Physical Review Letters
Ming-Fu TsaiWen-Hao Chang

Abstract

We report measurements of diamagnetic shifts for different exciton complexes confined in small InAs quantum dots. The measured diamagnetic responses are sensitive to the number of carriers in the exciton complexes, with systematic differences between neutral excitons, biexcitons, and trions. Theoretical calculations suggest that such systematic differences arise from very different extents of electron and hole wave functions confined in small quantum dots. The measured magnetic response of Coulomb energies is found to vary with the cube of the wave function extent, and can be a sensitive probe to the electron-hole wave function asymmetry.

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Citations

Aug 28, 2015·Physical Chemistry Chemical Physics : PCCP·Hanz Y RamírezÁngela S Camacho
Oct 16, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M R Amin
Nov 13, 2015·Optics Express·Y H ShinS Takeyama
Jul 6, 2014·Nanoscale Research Letters·Nelson R FinoHanz Y Ramírez

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