论文标题
非共线性反铁磁Mn $ _3 $ ni $ _ {0.35} $ cu $ _ {0.65} $ n电影
Epitaxial growth and orientation-dependent anomalous Hall effect of noncollinear antiferromagnetic Mn$_3$Ni$_{0.35}$Cu$_{0.65}$N films
论文作者
论文摘要
我们报告了非共线性抗铁磁性（AFM）Mn $ _3 $ ni $ _ {0.35} $ cu $ _ {0.65} $ n电影，以及由于非区域的依赖于方向依赖于方向依赖性的异常霍尔效应（AHE）和（111）电影，这是由于非区域的。我们发现，在500 $^\ Circ $ C下以500 $^\ C $ C的方式进行解放可以显着改善AHE信号，尽管使用适当的解放后条件很重要。 AHE和磁化环在（111）膜中的强制场显示出急剧的翻转，而（001）膜很难被磁场饱和。 （111）胶片的异常电导率是比（001）膜大的数量级。目前的结果不仅为MN $ _3X $ N系统中的AHE提供了更好的了解，而且还提供了进一步研究与非共线性AFM相关的独特现象的机会。
We report the growth of noncollinear antiferromagnetic (AFM) Mn$_3$Ni$_{0.35}$Cu$_{0.65}$N films and the orientation-dependent anomalous Hall effect (AHE) of (001) and (111) films due to nonzero Berry curvature. We found that post-annealing at 500$^\circ$C can significantly improve the AHE signals, though using the appropriate post-annealing conditions is important. The AHE and magnetization loops show sharp flipping at the coercive field in (111) films, while (001) films are hard to saturate by a magnetic field. The anomalous Hall conductivity of (111) films is an order of magnitude larger than that of (001) films. The present results provide not only a better understanding of the AHE in Mn$_3X$N systems but also further opportunities to study the unique phenomena related to noncollinear AFM.
