Robust magnetization dynamics and magnetocaloric anomalies across the phase diagrams of noncollinear magnets

Incommensurate magnetic structures stabilized by the Dzyaloshinskii-Moriya interaction exhibit long-range phase coherence over macroscopic length scales. Depending on the crystal symmetry, the magnetocrystalline anisotropy controls the orientation of the propagation vector and may also enhance the robustness of the magnetic texture. We present recent studies on the magnetic phase evolution of noncollinear spin textures analyzing the nonlinear ac magnetic response and magnetocaloric effect for selected crystalline magnetic materials with broken inversion symmetry: Cr_1/3NbS₂, GaV4S8, and MnSi. Each realize solitonic spin textures of varying dimension and helicity due to distinct differences in magnetocrystalline anisotropy. By analyzing the anomalous nonlinear response and dynamic magnetic loss, we characterize the rigidity of the various spin textures against an ac magnetic field. Additionally, our magnetocaloric measurements uncover phase regimes characterized by field-induced spin fluctuations, where entropy increases across the metamagnetic transition. The combined analysis reveals details about the complex ordering and magnetization processes that may be useful for identifying new magnetic phases emerging from long-period spin textures.