简介：TheverticalandlateralinteractionsinamultisheetarrayofInAs/GaAsquantumdotsareanalyzedbyfiniteelementmethod(FEM).Itisshownthatduetotheeffectsofverticalinteraction,nucleationpreferstohappenaboveburiedquantumdots(QDs).Meanwhile,theeffectsoflateralinteractionadjustthespacingoflateralneighboringQDs.TheverticalcouplingbecomesstrongwithdeceasingGaAsspacerheightandincreasingnumberofburiedlayers,whilethelateralcouplingbecomesstrongwithincreasingInAswettinglayerthickness.Thephenomenonthat,aftersuccessivelayers,thespacingandsizeofQDsislandsbecomeprogressivelymoreuniformisexplainedaccordingtotheminimumpotentialenergytheory.
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