Visible to the public The Effect of Easy Axis Deviations on the Magnetization Reversal of Co Nanowire

TitleThe Effect of Easy Axis Deviations on the Magnetization Reversal of Co Nanowire
Publication TypeJournal Article
Year of Publication2018
AuthorsPeng, Y., Yue, M., Li, H., Li, Y., Li, C., Xu, H., Wu, Q., Xi, W.
JournalIEEE Transactions on Magnetics
Date Publishednov
KeywordsCo, Co nanowire, cobalt alloys, coercive force, coercivity, compositionality, cyber physical systems, demagnetisation, demagnetization field, easy axis deviation, easy axis orientation, ferromagnetic materials, Internet of Things, macroscopic hysteresis loops, Magnetic domains, magnetic hysteresis, magnetic moments, magnetic performance, Magnetic Remanence, magnetic reversal process, magnetisation reversal, magnetization reversal, maximum magnetic product, microscopic magnetic moment distributions, nanowires, neodymium alloys, nucleation, Perpendicular magnetic anisotropy, pubcrawl, remanence, Resiliency, reversal domain nucleation, Saturation magnetization
AbstractMacroscopic hysteresis loops and microscopic magnetic moment distributions have been determined by 3-D model for Co nanowire with various easy axis deviations from applied field. It is found that both the coercivity and the remanence decrease monotonously with the increase of easy axis deviation as well as the maximum magnetic product, indicating the large impact of the easy axis orientation on the magnetic performance. Moreover, the calculated angular distributions and the evolution of magnetic moments have been shown to explain the magnetic reversal process. It is demonstrated that the large demagnetization field in the two ends of the nanowire makes the occurrence of reversal domain nucleation easier, hence the magnetic reversal. In addition, the magnetic reversal was illustrated in terms of the analysis of the energy evolution.
Citation Keypeng_effect_2018