Hall effect in microscopically inhomogeneous magnetic alloys

A theory of the generalized conductivity for the normal component of the Ha ll effect is developed. It is shown that the normal Hall effect coefficient R-0 of microscopically inhomogeneous magnetic alloys GdZnxCu1-x, which at low temperatures consist of ferro-, antiferro-, and paramagnetic phases, ca n be described satisfactorily on the basis of an effective-medium theory. T he experimentally observed relationship between the coefficient R-0 (x) and the resistivity rho(x) is obtained. (C) 1999 American Institute of Physics . [S1063-7834(99)02101-2].