本文研究了掺少量Zr对非晶态Fe_(82-x)Zr_xSi_5B_(13)(x=0.02,0.16,0.87)合金的磁性、电性和热稳定性的影响。实验结果表明,当Zr含量从x=0.02增加到0.87时,晶化温度T_(cr)从755K增加到782K(升温速率10K/min),室温下的饱和磁化强度σ(R. T. )和居里温度T_C分别下降了3％和4.5％。Zr的加入也使得交换积分的涨落增大。在x=0.87的样品中,温度T=15K时出现了电阻率的极小值,可以认为是类Kondo效应的贡献。
Effect of impurity Zr on the magnetic properties, electrical resistivity and thermal stability of amorphous Fe_(82-x)Zr_xSi_5B_(13) (x =0.02, 0.16, 0.87) alloys has been studied. It was observed that while the Zr content in the alloys increases from x=0.02 to 0.87, the crystallization temperature, T_(cr), increases from 755 to 782K at a rate on heating of 10 K/min, and the saturation magnetization, σ(RT), at room temperature also the Curie temperature, Te, decrease 3% and 4.5% respectively. The fluctuation of the exchange interaction of the alloys is increased by the increase of Zr addition. The resistivity minimum was also obtained at low temperature of 15K in the alloy containing Zr=0.87. It seems to attribute this to Kortdo-like effect.
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