Author/Authors :
S.J. Cheng، نويسنده , , W Sheng، نويسنده , , P Hawrylak، نويسنده , , S Raymond، نويسنده , , S Studenikin، نويسنده , , A Sachrajda، نويسنده , , Z Wasilewski، نويسنده , , A Babinski، نويسنده , , M Potemski، نويسنده , , G Ortner، نويسنده , , M Bayer، نويسنده ,
Abstract :
We present results of calculations and experiments on electron–hole complexes in InGaAs/GaAs self-assembled quantum dots in high magnetic field (B). Due to hidden symmetries, the chemical potential of an N-exciton system at special B fields becomes insensitive to the exciton number as well as the magnetic field. This results in plateau regions of high intensity in measured magneto-PL spectrum. Theoretical calculations using exact diagonalization techniques successfully explain the measured magneto-photoluminescence spectrum with B fields up to View the MathML source.