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介绍FeXCu1-X纳米颗粒膜的输运性质研究工作 .用磁控溅射的方法制备了系列组分的FeXCu1-X颗粒膜 ,发现在很宽的温度范围内 ( 1 2～ 2 90K)有显著的负阻温特性 ,而且随着溅射时间、铁铜原子比、退火条件的改变分别有着负阻温特性向正阻温特性的转变过程 ;当X =0 .6 4溅射时间为 1min时 ,出现了比一般非晶合金大一个数量级的负阻温变化 ;结合非晶态理论对实验现象给出了定性解释 .
The transport properties of FeXCu1-X nanoparticle films were described.The FeXCu1-X films with different compositions were prepared by magnetron sputtering and found to be significant over a wide range of temperatures (12-290K) The negative temperature resistance and the temperature characteristics of the sputtering process, and with the sputtering time, iron-copper atomic ratio, the annealing conditions have a negative resistance to temperature resistance characteristics of the resistance to temperature transition process; when the X = 0.64 sputtering time of 1min , There is an order of magnitude more than the average amorphous alloy negative temperature resistance changes; combined with the amorphous theory of the experimental phenomenon is given a qualitative explanation.