Magnetar is a kind of pulsar powered by magnetic field energy. The study magnetars an important hotspot in the pulsars. In this paper, according to work Zhu Cui, et al. (Zhu C, Gao Z F, Li X D, Wang N, Yuan J P, Peng Q H <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://doi.org/doi.10.1142/S021773231650070X">2016 <i>Mod. Phys. Lett. A</i&...