Figure 3: Temperature dependence of magnetoresistivity.
From: Anomalous magnetoresistance in the spinel superconductor LiTi2O4
(a) The transverse magnetoresistivity with B⊥ab plane, Δρxx=ρxx(B)−ρxx(0T), changes from negative to positive as temperature is decreased. The crossover temperature is ∼50±10 K. The positive magnetoresistivity is proportional to B2 as seen in the inset, whereas the negative MR is not. (b) Magnetoresistivity at 7 T plotted against the temperature. The dark and red symbols are for samples L1 and L2, respectively. The magnetic field was applied along three different directions, that is, B//ab plane (B//I, B⊥I) and B⊥ab plane. The error bars are maximum data noise in determining the magnetoresistivity. The negative magnetoresistivity is nearly isotropic, whereas the positive magnetoresistivity shows unambiguous anisotropy.
