α decay is a common and important process of natural radioactivity of the heavy and superheavy nuclei. From the α decay of nuclei, we can obtain much more information of nuclei structure. In our previous works [X.-D. Sun et al., Phys. Rev. C 93, 034316 (2016); X.-D. Sun et al., Phys. Rev. C 95, 014319 (2017)], we have done systematic study on the α preformation probability of both the even-even and odd- A nuclei within the two-potential approach. The α preformation probabilities will systematically change due to the shell effect, proton-neu...
