Hall effect and Hall resistivity in REBa/sub 2/Cu/sub 3/O/sub 7- delta /

Results of Hall effect and Hall resistivity measurements for single-phase REBa/sub 2/Cu/sub 3/O/sub 7- delta / (RE=Y, Sm, Gd, Dy, Tm, Yb) and YBa/sub 2/Cu/sub 3/O/sub 7- delta / single crystals around and above T/sub c/ are reported. For all polycrystalline samples the Hall numbers V/sub 0//R/sub H/e are positive and show a linear temperature dependence in the range 120 K>