An elegant approach on the synthesis of graphene on the strong ferromagnetic (FM) material Mn5Ge3 is proposed via intercalation of Mn in the graphene-Ge(111) interface. According to the DFT calculations, graphene in this strongly interacting system demonstrates the large exchange splitting of the graphene-derived π band. In this case only spin-up electrons in graphene preserve the Dirac-electron-like character in the vicinity of the Fermi level and the K point, whereas such behavior is not detected for the spin-down electrons. This unique feature of the studied gr/FM-Mn5Ge3 interface which can be prepared on the semiconducting Ge can lead to its application in spintronics.
@article{arxiv.1906.00359,
title = {Dirac-Electron Behavior for Spin-Up Electrons in Strongly Interacting Graphene on Ferromagnetic Mn$_5$Ge$_3$},
author = {Elena Voloshina and Yuriy Dedkov},
journal= {arXiv preprint arXiv:1906.00359},
year = {2019}
}