Magnetic Properties of Intercalated Gr/Ni (111) System

1Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Centre «Kurchatov Institute», 188300 Gatchina, Russia
2Saint-Petersburg Electrotechnical University "LETI" St. Petersburg, 197376, Russia
3Ioffe Institute, St. Petersburg, 194021, Russia

 

Adv. Mater. Lett., 2019, 10 (9), pp 633-636

DOI: 10.5185/amlett.2019.0021

Publication Date (Web): Sep 03, 2019

Copyright © IAAM-VBRI Press

E-mail: smd2000@mail.ru 

Abstract

Intercalation of graphene (Gr) with transition metals is perspective for creating magnetic tunnel junctions and structures of the type graphene/ferromagnetic metal/substrate with perpendicular magnetic anisotropy (PMA). The paper presents the results of first-principle calculations of the magnetic properties for Gr/Fe (Co)/Ni (111) systems. Ab initio calculations of the electron spectrum of the systems were performed in the framework of the spin density functional theory (SDFT). Kohn-Sham single-particle spectra were used to determine total energies of the systems for different spin quantization axes, partial and total densities of the electron states, and also magnetic moments of all atoms. Then, using these magnetic moments, the energies of dipole-dipole interaction were obtained and the magnetic crystalline anisotropy (MCA) of the systems was studied. © VBRI Press.

Keywords

Graphene, spin density functional theory, crystalline magnetic anisotropy.