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Physics of the Solid State

, Volume 59, Issue 10, pp 2053–2057 | Cite as

Ultrathin epitaxial cobalt films formed under graphene

  • M. V. Gomoyunova
  • G. S. Grebenyuk
  • D. A. Smirnov
  • I. I. Pronin
Surface Physics, Thin Films

Abstract

The intercalation of cobalt under a graphene monolayer grown on a Ni(111) single crystal film is studied. The experiments are conducted in ultrahigh vacuum. Samples are characterized in situ by low energy electron diffraction, high-energy-resolution photoelectron spectroscopy using synchrotron radiation, and magnetic linear dichroism in photoemission of Co 3p electrons. New data are obtained on the evolution of the atomic and electronic structure and magnetic properties of the system with increasing thickness of the intercalated cobalt layer in the range up to 2 nm. It is shown that a pseudomorphic epitaxial film of Co(111) having magnetization perpendicular to the surface is formed under the grapheme layer during intercalation in an anomalously wide range of thicknesses.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • M. V. Gomoyunova
    • 1
  • G. S. Grebenyuk
    • 1
  • D. A. Smirnov
    • 2
    • 3
  • I. I. Pronin
    • 1
    • 4
  1. 1.Ioffe InstituteSt. PetersburgRussia
  2. 2.St. Petersburg State UniversitySt. PetersburgRussia
  3. 3.Leibniz Institute for Solid State Physics and Material ResearchDresden University of TechnologyDresdenGermany
  4. 4.St. Petersburg National Research University of Information Technology, Mechanics, and OpticsSt. PetersburgRussia

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