Observation of temperature-dependent Dzyaloshinskii–Moriya interaction within the 50–300 K range

The Dzyaloshinskii–Moriya interaction (DMI) is essential for the formation of chiral objects in magnetic heterostructures. Herein, the temperature (T)-dependence of the DMI in Pt/Co/MgO is investigated over a wide range below 300 K. The T-dependent behavior of the DMI is stronger than that of the Heisenberg exchange interaction; thus, the anisotropic exchange is more T-sensitive than the isotropic exchange. Additionally, D∝M4.79 and A∝M2 for Pt/Co/MgO, and different ferromagnet (FM) layers can originate from different scaling factors between D and M. Therefore, the DMI T-dependence in a Pt-based multilayer system depends on the FM type, which implies that orbital hybridization at an interface may elucidate the relation between D and M.

Induced half-metallic characteristic and enhanced magnetic anisotropy in two-dimensional Janus V2I3Br3 monolayer by adsorbing graphyne

The recent emergence of two-dimensional (2D) Janus materials opens a new avenue of spintronics and optoelectronic applications. However, 2D magnetic Janus materials and Janus monolayer based magnetic heterostructures are yet...