Author/Authors :
A.A. Bykov، نويسنده , , O. Estibals and J. C. Portal ، نويسنده , , I.V. Marchishin، نويسنده , , L.V. Litvin، نويسنده , , A.K. Bakarov، نويسنده , , A.I. Toropov، نويسنده , , D.K Maude، نويسنده , , J.C. Portal، نويسنده ,
Abstract :
Magneto-transport properties of small ring interferometers with narrow electronic channels made on the basis of a 2D electron gas in a GaAs quantum well with AlAs/GaAs superlattice barriers are studied. It was found that the amplitude of the h/e-oscillations is correlated to the Shubnikov–de Haas oscillations in the area where the 2D electron gas is connected to the ring. A possible mechanism of this effect is a change of the confining potential which forms the geometry of the regions located at the ring input and output, in the quantized Hall regime.
