Author/Authors :
G.M. Gusev، نويسنده , , J.R. Leite، نويسنده , , E.B. Olshanetskii، نويسنده , , D.K Maude، نويسنده , , M. Cassé، نويسنده , , J.C. Portal، نويسنده , , N.T Moshegov، نويسنده , , A.I. Toropov، نويسنده ,
Abstract :
Shubnikov–de Haas (SdH) oscillations induced by the small additional perpendicular field are investigated in overfilled parabolic quantum well in the presence of the parallel magnetic field. The dispersion relation of the in-plane electron motion has a double minimum in contrast to the harmonic-oscillator model. Landau levels belonging to the additional subband minima are responsible for the observed behaviour of the SdH oscillations.