Abstract <p>Magnetic skyrmions have great potential for application in next-generation spintronics devices. However, their controlled generation and manipulation remains a challenging scientific and technical problem. In this paper, we propose a skyrmion generation method based on a combination of a geometric notch and a nucleation region with modified magnetic properties. The transformation dynamics of a chiral domain wall into a skyrmion under the action of a spin-polarized current is investigated. Micromagnetic simulations have shown that the presence of an additional square notch allows for a reduction of the critical current density by 24% (from ~7.9&#xa0;× 10¹² to 6.0 × 10¹² A/m²) compared with the case of presence of only the nucleation region, ensuring stable generation of skyrmions with a frequency of up to 1 GHz at a minimum critical current, and up to 4&#xa0;GHz at <i>j</i>&#xa0;=&#xa0;10 × 10¹² A/m². The results obtained open up prospects for the development of energy-efficient skyrmion-based devices for information storage and processing.</p>