  The Hall resistivity rho_{xy} of LuNi_2B_2C is negative in the normal as well
as in the mixed state and has no sign reversal typical for high-T_c
superconductors. A distinct nonlinearity in the rho_{xy} dependence on field H
was found in the normal state for T < 40K, accompanied by a large
magnetoresistance reaching +90% for mu_0H=16T at T=20K. The scaling relation
rho_{xy} ~ \rho_{xx}^\beta (\rho_{xx} is the longitudinal resistivity) was
found in the mixed state, the value of \beta being dependent on the degree of
disorder.
