Controllable properties and versatile dynamics of meron topological magnetism in van der Waals multiferroic CuCrP₂S₆.

ABSTRACT: The ability to efficiently control topological magnetism is crucial for advancing technological applications and deepening our understanding of magnetic systems. Although emerging van der Waals (vdW) multiferroics present a promising frontier for energy-efficient spin manipulation, the control of topological magnetism remains challenging due to its scarcity in multiferroics. Here, we demonstrate that highly tunable merons and antimerons emerge in monolayer multiferroic CuCrP2S6 (CCPS). The antiferroelectric-to-ferroelectric (AFE-FE) transition enhances exchange couplings, notably reducing meron density and increasing meron size during cooling. Merons exhibit unique dynamics, characterized by nontrivial attraction and annihilation processes, which generates distinct long-lived spin waves an

SUBMITTER: Cui Q 

PROVIDER: S-EPMC12391263 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature