Abstract
Transverse magnetoresistance of pure and ionized impurity (5, 10, 30, 55 and 100 ppm tin) doped antimony single crystals was measured up to 15 T at 1.4 K. Compared with pure antimony, phase inversion of the Shubnikov de Haas (SdH) oscillation was observed in the doped samples. Moreover, a marked increase in the oscillation amplitude was found in doped antimony. Typically, the SdH oscillation amplitude of 30 ppm tin-doped antimony was almost twice that of pure antimony. Hall resistivity ρyx was also measured for the same doped sample in order to obtain the conductivity tensor component σxx. Phase inversion was explained by taking account of component σxy in magnetoresistivity ρxx. The large SdH oscillation amplitude in the tin-doped samples was attributed to the scattering by ionized impurities and to be a direct reflection of the state density at the Fermi level.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
