A phase-cut method for multi-species kinetics: Sample application to nanoscale defect cluster evolution in alpha iron following helium ion implantation

作者：Xu Donghua^*; Hu Xunxiang; Wirth Brian D

来源：Applied Physics Letters, 2013, 102(1): 011904.

DOI：10.1063/1.4773876

Many kinetic processes in materials involve clustering of multiple species. Tracking concentrations of all compositions throughout the multi-species phase, space can readily become formidable when significant cluster growth occurs. Here, using nanoscale defect cluster evolution in alpha iron following helium ion implantation as an example, we demonstrate a phase-cut method that can effectively reduce this widely encountered problem. The method cuts out unnecessary compositions in the phase space and hence is much more efficient than a full-phase-space calculation. Yet, it retains the same precision in predicted experimental observables. The cutting of phase space does not require an accurate nucleation and growth path to be known a priori. The method may be applicable to other multi-species kinetic phenomena that are driven by irradiation and/or thermal annealing.

• 出版日期2013-1-7