Details

Autor(en) / Beteiligte

• REUTER, D
• KAILUWEIT, P
• WIECK, A. D
• ZEITLER, U
• WIBBELHOFF, O
• MEIER, C
• LORKE, A
• MAAN, J. C

Titel

Coulomb-interaction-induced incomplete shell filling in the hole system of InAs quantum dots

Ist Teil von

• Physical review letters, 2005-01, Vol.94 (2), p.026808.1-026808.4, Article 026808

Ort / Verlag

Ridge, NY: American Physical Society

Erscheinungsjahr

2005

Quelle

PROLA

Beschreibungen/Notizen

• We have studied the hole charging spectra of self-assembled InAs quantum dots in perpendicular magnetic fields by capacitance-voltage spectroscopy. From the magnetic-field dependence of the individual peaks we conclude that the s-like ground state is completely filled with two holes but that the fourfold degenerate p shell is only half filled with two holes before the filling of the d shell starts. The resulting six-hole ground state is highly polarized. This incomplete shell filling can be explained by the large influence of the Coulomb interaction in this system.