A unified framework to explore soliton boundary interaction using topological magnetic soliton spring oscillators.

ABSTRACT: Soliton-boundary interactions significantly influence the dynamics, stability, and functionality of topological magnetic solitons in spintronic devices, yet quantifying these interactions remains challenging. In this work, we introduce a unified framework termed the "topological magnetic soliton spring oscillator", designed to systematically explore and quantify soliton-boundary interactions across different soliton types, including hopfions, skyrmions, and domain walls. Within this framework, soliton motion is governed by the competition between two effective forces: the spin-transfer torque-induced driving force​, and the boundary-induced repulsive force​, which mainly arises from excess exchange energy near boundaries. Through comprehensive micromagnetic simulations, we reveal that the

SUBMITTER: Qiao S 

PROVIDER: S-EPMC12484611 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature