Figure 4
Electrical transport properties of DPB. (a) Temperature-dependent longitudinal resistance (Rxx) measurement in zero magnetic field (red data points), black line is fitting of simple resistivity Eq. \({R}_{xx}=\,{R}_{o}+A{T}^{5}+\,B\,\exp (\,-\,\frac{\theta }{T})+\gamma {T}^{2}\). (b) Variation of carrier concentration (deduced from Hall effect measurement) with temperature. The inset shows the Hall resistivity (ρxy) of DPB as a function of magnetic field at temperatures 2 K, 10 K and 100 K. The dominant charge carriers are electrons.
