Fig. 4: Magnetoresistance (MR) of CeCo2Ga8.
a Temperature dependence of ρzz under various fields 0, 4, 9 and 15 T, B∥[100]. b Temperature dependence of ρzz under various fields B∥[001]. c \(\Delta \rho ={\rho }_{zz}^{{{{\bf{B}}}}\parallel [100]}-{\rho }_{zz}^{{{{\bf{B}}}}\parallel [001]}\) as a function of T, under external field 15 T. d A plot of T* vs. B for both field directions. e, f Kohler’s plot. MR as a function of B/ρzz(0) for B∥[100] and B∥[001], respectively. For both field directions, Kohler’s rule is drastically violated. g, h Coqblin-Schrieffer analysis for S = 1/2 Kondo impurity model. MR vs. B/(T + TK). For both field directions, MR data in the hybridization dynamic regime fall on a single line. Note that such a scaling law holds even for below T*.
