Magnetoresistance Study of Noncoupled-Type Multilayers Prepared on V-groove Substrates

Abstract

Using Co/NM/NiFe/NM (NM=Cu, Ag, Au) multilayers prepared on the substrates with V-groove microstructures, we measured the magnetoresistance both with CIP geometry and with current-at-an-angle-to-the-plane (CAP) geometry for the same sample. It was confirmed that CAP-MR is larger than CIP-MR for all of Cu, Ag and Au based series. We estimated CPP-MR values by extrapolation using observed CIP-MR and CAP-MR values. The deduced CPP data were analyzed by the series resistor model and the obtained parameters for Cu, Ag and Au based series were compared with one another.