摘要
在一简单晶界模型的基础之上,求解纯A1晶界的正电子捕获态和计算相应的寿命谱,由此讨论了晶界原子密度分布与寿命谱之间的关联,并尝试对已有的实验结果进行理论上的解释.
On the basis of one simple grain boundary model, the trapped states of positrons at grain beunaries in pure Aluminium are solved and tthe corresponding positron annihilation lifetime spectra are calculated. The correlations between the atomic density distributions of grain boundaries and the lifetime spectra are discussedand the existing experimental results are explained theoretically.
出处
《高能物理与核物理》
CSCD
北大核心
1989年第10期879-885,共7页
High Energy Physics and Nuclear Physics
