Magnetic Domain‐Determined Microwave Magnetic Properties in Magnetic Film with Antiparallel Aligned Domain Structure

The static and dynamic magnetic properties of three types of domain structures are investigated: weak, strong, and labyrinth stripe domains, across a series of samples. Through magnetic force microscopy and hysteresis loops, an analysis of the magnetic domain characteristics is conducted. The dynamic magnetic results indicate that the number and width of resonance peaks in the films can be extensively tailored by selecting specific natural domain structures. These static and dynamic properties are further validated and supported by comprehensive micromagnetic simulations of the three types of magnetic domains. The control of the resonance peaks and linewidths through the configuration of stripe magnetic domains hold practical significance for microwave noise suppression devices with optimized microwave bandwidth.