The role of spin-flip assisted or orbital mixing tunneling on transport through strongly correlated multilevel quantum dot

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:497

Article

Krychowski, D.¹  Lipinski, S.¹ 

[1] Polish Acad Sci, Inst Mol Phys, M Soluchowskiego 17, PL-60179 Poznan, Poland

关键词: Quantum dots;    Kondo effect;   

DOI  :  10.1016/j.jmmm.2019.166050

来源: Elsevier

【 摘 要 】

Using the slave boson Kotliar-Ruckenstein approach (SBMFA) for N level Anderson model, we compare fully symmetric SU(N) Kondo resonances occurring for spin and orbital conserving tunneling with many-body resonances for the dot with broken symmetry caused by spin, orbital or full spin-orbital mixing. As a result of interorbital or spin flip processes new interference paths emerge, which manifests in the occurrence of anti-bonding Dicke like and bonding Kondo like resonances. The analytical expressions for linear conductances and linear temperature thermopower coefficient for arbitrary N are found.

【 授权许可】

Free