Effective Dirac fermion temperature TDF versus driving current I on a log-log scale. The red line corresponds to the best fit in the high-current regime. The exponent in the TDF-I relation is given as α = 0.52 ± 0.01. The error stems from interpolation of the magnetoresistivity data.
Liu et al. Nanoscale Research Letters 2013 8:360 doi:10.1186/1556-276X-8-360