Interface properties of FePc adsorbed on Ag (100) with and without NaCl monolayer M. Jabrane^1,2, M.Y. El Hafidi¹ , M. El Hafidi¹ , A. Kara² ¹Laboratoire de la physique la matière condensée, Faculty of Sciences Ben M’Sik, Hassan II University

For spintronic based technologies, current research focuses on developing novel nanoscale materials that combines molecular magnetism with organic spintronic devices. In this context, we studied magnetic properties of Iron-Phthalocyanine (FePc) adsorbed on various metallic surfaces. We found that FePc loses its magnetization when deposited on Cu(111) and Ag(111) with a charge transfer of 0.7e and 0.8e towards the molecule, respectively. Therefore, the interaction between FePc and the substrates affects the properties of the molecule. To circumvent the loss of FePc magnetic state, we suggest adding a monolayer of an insulator.
In this work, we tackle a full comparison of the geometric, magnetic and electronic properties of FePc/Ag(100) with and without an insulator. We have opted to use NaCl as insulator because its lattice constant is compatible to that of Ag. The calculations are performed using Density Functional Theory (DFT) and taking into account Vdw functionals to improve the description of the interactions.