Estevez rams

• Fe-Nb-Si
• Co-Cu-Sm
• Fe-Si
• Fe-Si-Ta
• Cr-Fe-Si
• magnetic properties
• structural properties
• magnetic hysteresis
• coercive field
• magnetic transitions
• transitional
• ternary
• disordered
• ferromagnetic
• metalloid
• cubic
• hexagonal
• tetragonal