Bhattacharjee, Satadeep Lee, Seung-Cheol 2024-09-06T06:00:06Z 2024-09-06T06:00:06Z 2024-09-05 2024-11 0953-8984 https://pubs.kist.re.kr/handle/201004/150549 Recent developments in the magnetization dynamics in spin textures, particularly skyrmions, offer promising new directions for magnetic storage technologies and spintronics. Skyrmions, characterized by their topological protection and efficient mobility at low current density, are increasingly recognized for their potential applications in next-generation logic and memory devices. This study investigates the dynamics of skyrmion magnetization, focusing on the manipulation of their topological states as a basis for bitwise data storage through a modified Landau-Lifshitz-Gilbert equation (LLG). We introduce spin-polarized electrons from a topological ferromagnet that induce an electric dipole moment that interacts with the electric gauge field within the skyrmion domain. This interaction creates an effective magnetic field that results in a torque that can dynamically change the topological state of the skyrmion. In particular, we show that these torques can selectively destroy and create skyrmions, effectively writing and erasing bits, highlighting the potential of using controlled electron injection for robust and scalable skyrmion-based data storage solutions. English Institute of Physics Publishing Magnetization dynamics in skyrmions due to high-speed carrier injections from Dirac half-metals Article 10.1088/1361-648X/ad6f65 1 Journal of Physics: Condensed Matter, v.36, no.47 Journal of Physics: Condensed Matter 36 47 N scie scopus 001299495200001 Physics, Condensed Matter Physics Article SPIN CREATION topological ferromagnet quantum magnet skyrmion magnetic memory