Band splitting induced Berry flux and intrinsic anomalous Hall conductivity in the NiCoMnGa quaternary Heusler compound

The anomalous transport properties of Heusler compounds become a hotspot research in recent years due to their unique band structure and possible application spintronics. In this paper, we report the Hall effect polycrystalline NiCoMnGa quaternary compound by experimental means theoretical calculations. conductivity (AHC) was found at about 256 S/cm 10K with an intrinsic contribution ~ 121 S/cm. analysis data reveals presence both extrinsic contributions AHE. Our calculations show that pair spin-orbit coupled formed splitting interaction (SOI) Fermi level produces finite Berry flux system provides AHC 100 S/cm, which is good agreement experiment.