MAGNETOTRANSPORT IN THE RARE-EARTH SILICIDES RSI2-X

The resistivity, magnetoresistance and Hall effect of the rare earth s ilicides RSi2-x, with x from 0 to 0.4, have been measured on several p olycrystalline samples, single crystals and epitaxial thin films. All samples are metallic; the Hall effect measured for some phases shows t hat we are dealing with nearly compensated metals. The magnetoresistan ce displays peculiar features in antiferromagnetic phases, which are e xplained by the increase of spin disorder scattering at the metamagnet ic transition.