Magnetic and transport properties of Co-Cu microwires with granular structure

► Systematic study of magnetic and transport properties of Co-Cu microwires. ► Observation of Giant Magnetoresistance effect in CoxCu100− x microwires. ► Observation of Kondo-like behavior in CoxCu100− x at lower Co content (5%). ► Discussions of the effect of internal stresses on the properties of Co-Cu microwires. ► Discussion of the effect of composition on the properties of Co-Cu microwires.