论文标题
缩放全部外部抗铁磁铁/铁磁体双层中的交换偏差的电流切换
Scaling the electrical current switching of exchange bias in fully-epitaxial antiferromagnet/ferromagnet bilayers
论文作者
论文摘要
尽管已经证明了抗铁磁铁（AFM）的电流操作，但研究的AFM材料的程度受到限制，几乎没有系统的实验和不良的理解。我们比较了AFM-MN $ _3A $ n/ferromagnet-co $ _3 $ fen biLayers中的Exchange-mias字段（$ h_ {ex} $）的电流切换（$ h_ {ex} $）。相对于电流密度和FM层磁化，应用的脉冲电流可以操纵$ h_ {ex} $，该磁化强度的磁化值是当前密度的函数。我们发现，饱和电流密度和指数衰减常数$τ$随着AFM MN原子的局部矩而增加。我们的结果突出了AFM本地力矩对$ H_ {ex} $的电流切换的影响，尽管它具有接近零的净磁化，并且可能会提供一种探索AFM材料的电流操作的轻松方法。
While the electrical current manipulation of antiferromagnets (AFMs) has been demonstrated, the extent of the studied AFM materials has been limited with few systematic experiments and a poor understanding. We compare the electrical current switching of the exchange-bias field ($H_{ex}$) in AFM-Mn$_3A$N/ferromagnet-Co$_3$FeN bilayers. An applied pulse current can manipulate $H_{ex}$ with respect to the current density and FM layer magnetization, which shifts exponentially as a function of the current density. We found that the saturation current density and exponential decay constant $τ$ increase with the local moment of AFM Mn atoms. Our results highlight the effect of the AFM local moment to electrical current switching of $H_{ex}$, although it has a near-zero net magnetization, and may provide a facile way to explore the electrical current manipulation of AFM materials.
