Excess noise in Al${}_{\text{x}}$Ga${}_{\text{1-x}}$As/GaAs based quantum rings

Christian Riha, Sven S. Buchholz, Olivio Chiatti +3

Cross-correlated noise measurements are performed in etched Al${}_{\text{x}}$Ga${}_{\text{1-x}}$As/GaAs based quantum rings in equilibrium at bath temperature of $T_\text{bath}=4.2\tex…