Giant quantum oscillations of the magnetothermoelectric coefficient in semimetallic Sb-Bi and Sb-As alloys

Abstract

Quantum oscillations of the magnetothermoelectric coefficient αii(B) are investigated in semimetallic Sb-Bi and Sb-As alloys in stationary magnetic fields up to 15 T and at temperatures from 1.9 to 30 K. Quantum oscillations of αii(B) of a giant amplitude are observed when the longitudinal or transverse magnetic field is oriented along a binary C2 axis or a bisectory C1 axis and also when rotating the transverse magnetic field in angle ranges up to [+55°, −55°] around them.