论文标题
无定形tb $ _x $ co $ _ {100-x} $合金的磁性和全光开关属性
Magnetic and all-optical switching properties of amorphous Tb$_x$Co$_{100-x}$ alloys
论文作者
论文摘要
无定形的TB $ _ {X} $ CO $ _ {100-X} $磁合金显示出有趣的特性列表，例如垂直磁动率，高磁光活性和使用超平脉冲的磁化开关。在这些合金中改变TB：CO比率允许调整特性，例如饱和磁矩，强制场和光诱导的磁化切换的性能。在这项工作中，我们研究了各种TB $ _ {X} $ CO $ _ {100-X} $薄膜合金组成的磁性，光学和磁光能。我们报告了不同种子层对TB $ _ {x} $ CO $ $ _ {100-X} $ layers的结构和磁性的选择的影响。我们还证明，对于沉积在融合二氧化硅基板上的一系列合金，TB含量为24-30 at。$ \％$，可以实现磁化磁化强度的全光切换，尽管在多发框架中。我们解释这一特性是由依赖性依赖性激光引起的，这是由于Faraday效应的反向弹药而引起的。我们的研究提供了对材料方面的洞察力，可为未来的潜在混合磁性质量质量TBCO架构结构提供洞察力。
Amorphous Tb$_{x}$Co$_{100-x}$ magnetic alloys exhibit a list of intriguing properties, such as perpendicular magnetic anisotropy, high magneto-optical activity and magnetization switching using ultrashort optical pulses. Varying the Tb:Co ratio in these alloys allows for tuning properties such as the saturation magnetic moment, coercive field and the performance of the light-induced magnetization switching. In this work, we investigate the magnetic, optical and magneto-optical properties of various Tb$_{x}$Co$_{100-x}$ thin film alloy compositions. We report on the effect the choice of different seeding layers has on the structural and magnetic properties of Tb$_{x}$Co$_{100-x}$ layers. We also demonstrate that for a range of alloys, deposited on fused silica substrates, with Tb content of 24-30 at.$\%$, helicity dependent all-optical switching of magnetization can be achieved, albeit in a multi-shot framework. We explain this property to arise from the helicity-dependent laser induced magnetization on the Co sublattice due to the inverse Faraday effect. Our study provides an insight into material aspects for future potential hybrid magneto-plasmonic TbCo-based architectures.
