文摘
We prepared Cu100−m class="EmphasisTypeItalic ">x Co x (x = 5,10,20) glass-coated microwires by Taylor-Ulitovsky technique and studied the influence of annealing on structure and giant magnetoresistance (GMR) effect. We observed a significant improvement of the GMR effect in the samples annealed at high temperature (400°C) with longer annealing time. On the other hand low temperature annealing (150–200°C) only slightly affects the GMR effect. Considerable enhancement of the GMR effect related to structural changes of the studied samples after annealing is promising for technical applications.