Electrical resistivity and antiferromagnetism of chromium-palladium alloys between 77 and 700 K

Electrical resistivity has been measured as a function of temperature for binary chromium alloys containing 0.99, 1.48, and 1.99 at.% palladium. The Néel temperature, determined from the d dT method, oscillates with palladium concentration, first decreasing to a minimum at 0.6 at.% palladium and then rising again to a peak at 1.5 at.% palladium. Similar behavior is observed for the temperature coefficient of resistivity in the paramagnetic regime. We attribute the initial decrease in both cases to competition between Fermi-surface nesting and resonant scattering of band electrons from palladium impurities. The observed oscillations may result from a small moment on palladium impurities coupling to the spin-density wave of the host. © 1980 The American Physical Society