Figure 3
Magnetoresistance upon applying perpendicular magnetic field at 2 K. Magnetoresistance curve measured at CNP (a), VG − VD = −10 V (b), and VG − VD = −42.5 V (c). The dotted line indicates fitting curve from Eq. (2). The dotted blue line shows the weak localization fitting for the low-field magnetoresistance behavior. The dotted red line is a fitting curve by increasing valley scattering without changing phase coherence time.
