论文标题
磁异质结构促进的短波长旋波的混合镁
Hybrid magnonics for short-wavelength spin waves facilitated by a magnetic heterostructure
论文作者
论文摘要
杂交镁化学的最新研究受到铁磁共振模式的长镁波长的限制。我们提出了一个关于250 nm波长镁与微波光子在多模巨头系统中的杂交的实验，该实验由平面腔和磁性双层组成。在两个磁性层中的木元素模式之间的耦合，即permalloy（PY）中的均匀模式和YIG中垂直的旋转波（PSSW）的均匀模式，是令人兴奋的短波长PSSW的有效手段，该手段与微小波复合器的光子模式进一步杂交。所展示的镁晶状体耦合接近超晶耦合方案，甚至可以在零偏置场附近实现。
Recent research on hybrid magnonics has been restricted by the long magnon wavelengths of the ferromagnetic resonance modes. We present an experiment on the hybridization of 250-nm wavelength magnons with microwave photons in a multimode magnonic system consists of a planar cavity and a magnetic bilayer. The coupling between magnon modes in the two magnetic layers, i.e., the uniform mode in Permalloy (Py) and the perpendicular standing spin waves (PSSWs) in YIG, serves as an effective means for exciting short-wavelength PSSWs, which is further hybridized with the photon mode of the microwave resonator. The demonstrated magnon-photon coupling approaches the superstrong coupling regime, and can even be achieved near zero bias field.
