Pi Pericay, MartíEmperador, AgustíBarranco Gómez, ManuelGarcias, FranciscaMuraki, K.Tarucha, S.Austing, D. G.2010-06-082010-06-0820010031-9007https://hdl.handle.net/2445/12801We investigate the dissociation of few-electron circular vertical semiconductor double quantum dot artificial molecules at 0 T as a function of interdot distance. A slight mismatch introduced in the fabrication of the artificial molecules from nominally identical constituent quantum wells induces localization by offsetting the energy levels in the quantum dots by up to 2 meV, and this plays a crucial role in the appearance of the addition energy spectra as a function of coupling strength particularly in the weak coupling limit.4 p.application/pdfeng(c) American Physical Society, 2001Estructura electrònicaMacromolèculesCiència dels materialsElectronic structureMacromoleculesMaterials scienceinfo:eu-repo/semantics/article184420info:eu-repo/semantics/openAccess