Robust nature of the chiral spin helix in Cr Nb 3 S 6 nanostructures studied by off-axis electron holography

摘要: Magnetic soliton crystals with layered structures that host periodic chiral helimagnetic ordering are promising candidates for spintronic nanodevices. Among them, $\mathrm{Cr}{\mathrm{Nb}}_{3}{\mathrm{S}}_{6}$ is unique owing to its crystallographic chirality and monoaxial Dzyaloshinskii-Moriya interaction. It crucial explore magnetic configurations properties respect the temperature thickness, especially in reduced dimensions. Here, ground state nanostructures investigated using off-axis electron holography transmission microscope. The period of helical found be independent both specimen while dependence saturation magnetization shown follow a classical Heisenberg spin model. Monte Carlo simulations based on discrete model reproduce experimental observations closely, confirming applicability three-dimensional even confined geometry.