We investigated the dynamic susceptibility in the absence of a bias field of stadium-shaped and elliptical nanostructures by micromagnetic simulations. Both the resonant frequencies and the number of peaks depend on the minimum energy configuration, which in turn is a function of the aspect ratio of the system. Dynamic susceptibility does not vary much if the nanostructure is stadium-shaped or elliptical, if its lowest energy state is a vortex. If the configuration is a saturated state, the low resonance frequency is only visible in stadium-shaped nanostructures and not in elliptical nanostructures, which is justified by the impact of the curvature of each nanostructure. The possibility of controlling frequencies by modifying the geometric parameters of the system suggests the possibility of using these nanostructures in potential magnetic controllable frequency devices.

我们通过微磁模拟研究了在没有体育场形和椭圆形纳米结构偏置场的情况下的动态磁化率。谐振频率和峰值数量都取决于最小能量配置，而后者又是系统纵横比的函数。如果纳米结构是体育场形或椭圆形，如果其最低能量状态是涡流，则动态磁化率变化不大。如果配置为饱和状态，则低共振频率仅在体育场形纳米结构中可见，而在椭圆形纳米结构中不可见，这是由每个纳米结构曲率的影响所证明的。