We have measured the extraordinary Hall effect in thin films of the itinera
nt ferromagnet SrRuO3 as a function of temperature. We find that the extrao
rdinary Hall effect constant R-s cannot be fit with R-u = a rho + b rho(2);
instead, it can be described as R-s approximate to cT(5) + bp(2) where T i
s temperature and rho is resistivity, (C) 2000 Elsevier Science B.V. All ri
ghts reserved.