Pd/Ag and Pd/Au interface specific resistances and interfacial spin flipping

Abstract

We measured the specific resistances, 2ARPd∕Ag and 2ARPd∕Au (sample area A times resistance R), and spin-flip probabilities δPd∕Ag and δPd∕Au for Pd/Ag and Pd/Au interfaces with current perpendicular to the interfaces. 2ARPd∕Ag=0.7±0.15fΩm2 and 2ARPd∕Au=0.45±0.15fΩm2 are smaller than our revised estimate of 2ARPd∕Cu=0.85±0.15fΩm2, and lie further from no-free-parameter calculations. Our estimates of δPd∕Ag=0.15±0.08 and δPd∕Ag=0.08±0.08 are less than our prior estimate of δPd∕Cu∼0.24.