Fig. 3: Hall data.

Temperature dependence of the normal-state Hall coefficient RH, measured at high fields, in Hg1223 (p = 8.8%, red squares) and in Hg1201 (p = 8%, blue circles adapted from ref. 18). The Hall coefficient changes sign in Hg1201 while it remains positive (i.e. hole-like) down to the lowest temperature in Hg1223. Note that in Hg1223, as T → 0, RH ≈ 6.5 mm3/C, corresponding to an effective carrier density pH ≈ 8%. Error bars represent the noise generated by the 90 T coil (see Supplementary Note 4).