Appearance of combination frequencies in the Shubnikov-de Haas oscillations and in oscillations of the surface impedance of doped Bi tellurium and Bi1-xSbx alloys
Moshchalkov V.V., Mironova G.A.
Strong combination frequencies (with amplitude on the order of the amplitude of the fundamental harmonics) have been observed in the Shubnikov-de Haas oscillations and the surface-impedance oscillations of tellurium-doped Bi and Bi^Sb^. These combination frequencies were not observed in the de Haas-van Alphen oscillations of the same alloys under analogous conditions.