Atomistic Study of Interaction between Screw Dislocation and Vacancy Cluster Platelet in α-Zirconium α锆中螺形位错与空位盘的相互作用模拟
It is suggested that hydrogen atoms can act as centers of vacancy agglomeration, leading to the formation of vacancy cluster. 由此提出氢与空位互作用形成以氢为核心的空位团的机制,解释了实验中观察到的现象。
Phonon-mediated specific trapping rate of POSIT-RONS to the shallow energy level of a small vacancy cluster 小空位团浅能级对正电子的声子激发比捕获率
If there is a trapped state of a positron with binding energy lower than Debye energy at a small vacancy cluster, the capture of positrons from free state to this level will be strong temperature dependent. 若小空位团中存在束缚能小于晶体德拜能量的正电子捕获态,则这一能态对自由正电子的捕获具有较强的温度依赖性。
The behavior of these centers for various thermal quenching and anne-aling procedures provides evidence that these hole traps result from supersaturated vacancy, and probably are related to a certain large vacancy cluster. 从这些深中心缺陷的不同淬火和退火行为,可以认为缺陷中心主要是样品在激光退火过程中产生的过饱和空位所形成的,而且可能是与某种大空位团有关。