Hall effect within the colossal magnetoresistive semimetallic state ofMoTe2

Qiong Zhou, D. Rhodes, Q. R. Zhang, S. Tang, R. Schönemann, L. Balicas
2016 Physical review B  
Here, we report a systematic study on the Hall-effect of the semi-metallic state of bulk MoTe_2, which was recently claimed to be a candidate for a novel type of Weyl semi-metallic state. The temperature (T) dependence of the carrier densities and of their mobilities, as estimated from a numerical analysis based on the isotropic two-carrier model, indicates that its exceedingly large and non-saturating magnetoresistance may be attributed to a near perfect compensation between the densities of
more » ... ectrons and holes at low temperatures. A sudden increase in hole density, with a concomitant rapid increase in the electron mobility below T ∼ 40 K, leads to comparable densities of electrons and holes at low temperatures suggesting a possible electronic phase-transition around this temperature.
doi:10.1103/physrevb.94.121101 fatcat:wl6d46t5jvbqbhe7dhdgoy3n3q