Transport through strongly correlated triple quantum dot

Strong electron correlations are discussed for the three capacitively coupled quantum dots, each of which is connected to a separate pair of electrodes. The finite-U mean field slave boson approach is used. The analysis is carried out for both repulsive and attractive intra- and inter-dot interactio...

Full description

Saved in:
Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 541; p. 168564
Main Authors Krychowski, D., Antkiewicz, M., Lipiński, S.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.2022
Elsevier BV
Subjects
Electrons
Interaction parameters
Kondo effect
Quantum dots
Quantum dots
Kondo effect
Online AccessGet full text

Cover

More Information
Summary:Strong electron correlations are discussed for the three capacitively coupled quantum dots, each of which is connected to a separate pair of electrodes. The finite-U mean field slave boson approach is used. The analysis is carried out for both repulsive and attractive intra- and inter-dot interactions. Depending on the ratio and the sign of interaction parameters and occupation, either charge ordered states or different spin, spin–charge and charge Kondo resonances arise. •SU(3) and SU(6) charge Kondo effects are predicted.•Charge fluctuations rapidly increase in charge Kondo state.•Transition between SU(6) Kondo state and charge order is foreseen.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2021.168564