Reentrant Kondo effect for a quantum impurity coupled to a metal-semiconductor hybrid contact
Reentrant Kondo effect for a quantum impurity coupled to a metal-semiconductor hybrid contact
Using NRG, we show that a system containing a quantum impurity (QI), strongly coupled to a semiconductor (gap $2 \Delta$) and weakly coupled to a metal, displays a 'reentrant' Kondo stage at low temperatures. The NRG analysis of the corresponding Single Impurity Anderson Model (SIAM) shows that the reentrant stage …