Superconductivity and atomic ordering in neutron-irradiated Nb/sub 3/Al
Superconductivity and atomic ordering in neutron-irradiated Nb/sub 3/Al
复制标题
中子辐照 Nb/sub 3/Al 中的超导性和原子有序性
DOI：
10.1103/physrevb.12.147
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发表时间：
1975
影响因子：
3.7
通讯作者：
D. Cox
中科院分区：
文献类型：
--
作者：
A. Sweedler;D. Cox
研究了高能（E > 1 MeV）中子辐照对化学气相沉积法制备的Nb/sub 3/Ge薄膜性能的影响。辐照能量密度为3.4 × 10/sup 19/ n/cm/sup 2/时，超导转变温度T/sub c/从20.9 K降低到4.4 K，长程有序参数S从0.86降低到0.46，晶格参数a/sub 0/从5.142 A增加到5.174 A。当注量为6.5 × 10/sup 19/ n/cm/sup 2/时，大部分Nb/sub 3/Ge转变为非晶相。退火后A15相恢复。
The effects of high energy (E > 1 MeV) neutron irradiation on the properties of Nb/sub 3/Ge prepared by chemical vapor deposition have been studied. Irradiation to a fluence of 3.4 x 10/sup 19/ n/cm/sup 2/ produces a decrease in the superconducting transition temperature T/sub c/ from 20.9 to 4.4 K and in the long-range order parameter S from 0.86 to 0.46, and an increase in the lattice parameter a/sub 0/ from 5.142 A to 5.174 A. For a fluence of 6.5 x 10/sup 19/ n/cm/sup 2/, most of the Nb/sub 3/Ge is transformed into a noncrystalline phase. The A15 phase is recovered after annealing.