Abstract
Magnetic properties of melt-quenched amorphous ribbons having the general composition TM 100-x Zr x (TM= Fe,Co and/or Ni) have been investigated. Composition dependence of Curie temperature, Tc and magnetic moment, n B in Co 100-x Zr x and Ni 100-x Zr x alloys is similar to Co- and Ni-metalloid amorphous alloys. However, the decrement of Zr content in the Fe 100-x Zr x alloys causes both Tc and n B to decrease, and n B extrapolates at x=0 to almost 0 μ B . Such an unusual behavior of Tc and n B is also found on the Fe-rich portion of (Fe-Co-Ni) 90 - Zr 10 ternary system and Tc and n B of the Fe 90 Zr 10 alloy are 243 K and 1.29 μ B /Fe atom, respectively. For the Co 90 Zr 10 alloy the value of longitudinal linear magnetostriction λ is +3 × 10-6, and the zero-magnetostrictive composition lies near (Co .88 Ni .12 ) 90 Zr 10 and shifts to Fe-rich side with increasing Ni content.
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