Figure 5: Dependence of SdH period on field-tilt angle and high-field thermopower.
From: Evidence for massive bulk Dirac fermions in Pb1−xSnxSe from Nernst and thermopower experiments
(a) The dependence of the transition fields B1 and B2 versus tilt angle θ of B in sample 2 (x=0.23) inferred from magnetoresistance (B1 and B2 are the fields at which ζ jumps from LL with N=1→0 and N=2→1, respectively). Within our resolution, no angular dependence of B1 and B2 is observed. B is rotated in the y–z plane (sketch in inset). (b) High-field measurements of Sxx/T to 34 T at several T in sample 1. The B-linear dependence smoothly extends through the region 22–28 T where the transition (0, −)→(0, +) should have appeared. The interval 22–28 T is indicated by the horizontal green bar.
