Characteristics of parametric spin waves in rectangular magnonic blocks

The characteristics of parametric spin-wave pumping are investigated in three rectangular permalloy blocks with in-plane aspect ratios of 12, 6, and 4. Micro-Brillouin light scattering (BLS) spectroscopy is utilized to detect the intrinsic properties of excited spin waves under various excitation conditions of an external magnetic field and microwave power. Based on the theoretical dispersion relation and BLS intensity and its spatial profile, the parametric spin wave with a frequency of fsw=5.6 GHz

Automated summary

The study examined the characteristics of parametric spin-wave pumping in three rectangular permalloy blocks with different in-plane aspect ratios. Micro-Brillouin light scattering spectroscopy was used to detect the intrinsic properties of the excited spin waves under various excitation conditions. Based on theoretical dispersion relations and BLS intensity, a parametric spin wave with a frequency of fsw=5.6 GHz was identified.