Magnetic and structural properties of MnRh thin films

Abstract

Enhanced saturation magnetization in perpendicular L1 0 -MnAl films upon low substitution of Mn by 3d transition metals

Controlling the Metamagnetic Phase Transition in FeRh/MnRh Superlattices and Thin-Film Fe50-xMnxRh50 Alloys

“…The effect of such interfacial magnetic frustration also increases with decreasing the layer thickness t and could significantly contribute together with strain to the suppression of metamagnetism in FeRh. 60 Assuming that the MnRh layers are always in the FM phase, we calculated the fraction of the residual FM phase in the FeRh layers at low temperatures, assuming a MnRh saturation magnetization of 120 kA/m at 70 K. 49 While the t = 3 nm superlattice remains FM at all temperatures, all superlattices with a larger t feature a residual FM fraction, which decreases with the increasing individual layer thickness (see Table 2). The residual FM FeRh fraction is likely distributed across all FeRh layers in the stack, located at the interface and surface regions of the constituent films.…”

“…Assuming that the MnRh layers are always in the FM phase, we calculated the fraction of the residual FM phase in the FeRh layers at low temperatures, assuming a MnRh saturation magnetization of 120 kA/m at 70 K . While the t = 3 nm superlattice remains FM at all temperatures, all superlattices with a larger t feature a residual FM fraction, which decreases with the increasing individual layer thickness (see Table ).…”

“…In contrast, contemporary experimental studies on MnRh are relatively scarce with metamagnetic thin films being only reported recently. 48,49 First-principles calculations confirmed the stability of AF and FM ordering in this material, pointing to a substantial strain dependence of the magnetic anisotropy energy in the AF phase. 50−52 Remarkably, Fe−Mn− Rh alloy systems have also been theoretically considered very recently, predicting a tetragonally distorted cubic lattice in their FM phase.…”