论文标题
飞秒激光脉冲在平面波导中激发的自旋波的单向传播
Unidirectional propagation of spin waves excited by femtosecond laser pulses in a planar waveguide
论文作者
论文摘要
低能镁质逻辑电路是一个积极发展的现代磁性领域。镁对数据处理的潜在优势在于基于与电子学中半导体二极管和晶体管的类比，基于自旋波的非重新传播的单位。在本文中，我们建议通过使用飞秒激光脉冲激发铁电磁金属波导中自旋波的非转向波传播的方法。使用微磁建模，我们表明外部磁场的组合和在波导上的激发激光斑的位置导致激发自旋波数据包的单向传播。结果对于在后代的数据处理设备中设计混合型镁光子电路至关重要。
Low-energy magnonic logic circuits are an actively developing field of modern magnetism. The potential benefits of magnonics for data processing are vitally dependent on units based on non-reciprocal propagation of spin waves in analogy to semiconductor diodes and transistors in electronics. In this article, we suggest the approach to realize non-reciprocal propagation of spin waves in a ferromagnetic metallic waveguide by exciting them with femtosecond laser pulse. Using micromagnetic modeling, we show that the combination of an external magnetic field and the position of the excitation laser spot across the waveguide leads to unidirectional propagation of the excited spin-wave packet. The results are crucial for the design of hybrid magnonic-photonic circuits in future generations of data processing devices.
