Level Occupancy Anomalies in a Double QD System

• Authors: P. Stefański
• Languages of publication: EN

Abstracts

EN

A double quantum dot system is considered in the presence of the electron intra-Coulomb U interactions within the dots and inter-Coulomb U_{12} interactions between them. We show that both for spinless and spinfull electrons the dots occupancy anomalies are encountered and caused by electron correlations. This non-monotonic behavior strongly deviates from usual level filling at the Coulomb blockade. For spinfull electrons the inter-dot interaction modifies also on-site electron correlations.

Keywords

EN

73.63.Kv; 73.23.Hk

Discipline

• 73.23.Hk: Coulomb blockade; single-electron tunneling
• 73.63.Kv: Quantum dots

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 92-94

Dates

published

2009-01

Contributors

author

P. Stefański

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.115.92