Tunable Magnetic Proximity Effects in Graphene Junctions

ORAL

Abstract

The characteristic length of the magnetic proximity effects exceed the thickness of a graphene layer leading to an important, but typically overlooked, modifications of equilibrium and transport properties, as well as the implications for graphene spintronics [1,2]. Using the first-principles studies that integrate a real space density functional theory (GPAW) [3] with the state-of-the art boundary elements electrostatic code based on the Robin Hood method [4], we explore tunable electronic structure and magnetic proximity effects in the ferromagnet/insulator/graphene junctions. We show that the inclusion of a finite-size gate electrodes and van der Walls interaction lead to nontrivial effects that could also be important in other two-dimensional materials beyond graphene.\\[4pt] [1] P. Lazic et al., Phys. Rev. B 89 085429 (2014).\\[0pt] [2] W. Han et al., Nature Nanotech. 9, 794 (2014).\\[0pt] [3] J. Enkovaara et al., J. Phys. Cond. Matter 22, 253202 (2010).\\[0pt] [4] P. Lazic et al., J. Comp. Phys. 213, 117 (2006).

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Authors

  • Predrag Lazic

    Department of Physics, University at Buffalo, State University of New York, Buffalo, New York 14260, USA, Theoretical Physics Division, Rudjer Boskovic Institute

  • Kirill Belashchenko

    Department of Physics and Astronomy University of Nebraska-Lincoln, Lincoln, NE 68588-0299, USA, Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA, Department of Physics and Astronomy, University of Nebraska-Lincoln, University of Nebraska - Lincoln

  • Igor Zutic

    University at Buffalo, Department of Physics, University at Buffalo, State University of New York, Buffalo, New York 14260, USA, University at Buffalo, The State University of New York, Department of Physics, University at Buffalo, SUNY, Buffalo, NY 14260, USA, SUNY Buffalo, State University of New York at Buffalo, University at Buffalo-SUNY, University at Buffalo - SUNY