Quantum oscillations of Bi and alloy BiSb magnetoresistance in magnetic fields up to 33 T

The special quantum oscillations of bismuth magnetoresistance have been considered. In contrast to Shubnikov-de Haas (SdH) oscillations observed at temperature less than 4 K, the oscillations were detected in the temperature range 6-65 K and were referred to as 'high-temperature' oscillations (HTO). The results of joint studies of SdH oscillations and HTO of the magnetoresistance for pure Bi and alloy Bi1-xSbx (x=2.6 at%) in stationary magnetic field up to 33 T are presented. It was found that SdH oscillations and HTO reached its quantum limit at the same value of magnetic field. The analysis of the experimental data verified one of two alternative models of HTO