2.

Temperature dependence of SOTs. (a) Resistivity (ρ) of MNCN as a function of temperature (T). The slope change of resistivity around 210 K indicates the Néel temperature (T _N ). Damping-like torque (DLT) efficiency per unit electric field, ξ _DL , (black squares) as a function of T (b) and electrical conductivity, σ _xx (c). The blue-dashed curve in panels (b) and (c) represents the expected dependence of ξ _DL for a conventional nonmagnet (NM), such as Pt. The solid red curve represents the fitting of ξ _DL with respect to the temperature or σ _xx . The inset in (c) is a zoomed-in image near the transition temperature. (d) Estimated DLT efficiency per unit current density, ξ _DL , as a function of temperature (T).