| 摘要 |
PURPOSE:To obtain an MR element material reduced in variance by incorporating a metallic non-ferromagnetic phase between the fine ferromagnetic crystal grains at least partly. CONSTITUTION:At least 30% of the structure of the MR element material consists of the fine ferromagnetic crystal grains having <=500Angstrom diameter. A metallic non-ferromagnetic phase is incoporated between the ferromagnetic crystal grains at least partly, and the ferromagnetic crystal grain is surrounded by the metallic non-ferromagnetic phase. The metallic non-ferromagnetic phase contains at least one element selected from Cu, Cr, Mn, Au, Ag and Ru, and the fine ferromagnetic crystal grain contains at least one element selected from Fe, Co and Ni. An MR element material appropriate for the magnetic sensor, magnetic head, etc., is obtained in this way. |
