Physics of the Solid State

, Volume 58, Issue 10, pp 2135–2140 | Cite as

Intercalation synthesis of cobalt silicide under a graphene layer

  • G. S. Grebenyuk
  • M. V. Gomoyunova
  • O. Yu. Vilkov
  • B. V. Sen’kovskii
  • I. I. Pronin
Surface Physics and Thin Films


The silicon intercalation under single-layer graphene formed on the surface of an epitaxial Co(0001) film was investigated. The experiments were performed under conditions of ultra-high vacuum. The thickness of silicon films was varied within the range of up to 1 nm, and the temperature of their annealing was 500°C. The characterization of the samples was carried out in situ by the methods of low-energy electron diffraction, high-energy-resolution photoelectron spectroscopy using synchrotron radiation, and magnetic linear dichroism in photoemission of Co 3p electrons. New data were obtained on the evolution of the atomic and electronic structure, as well as on the magnetic properties of the system with an increase in the amount of intercalated silicon. It was shown that the intercalation under a graphene layer is accompanied by the synthesis of surface silicide Co2Si and a solid solution of silicon in cobalt.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A. K. Geim and K. S. Novoselov, Nat. Mater. 6, 183 (2007).ADSCrossRefGoogle Scholar
  2. 2.
    J. Wintterlin and M.-L. Bocquet, Surf. Sci. 603, 1841 (2009).ADSCrossRefGoogle Scholar
  3. 3.
    A. Varykhalov, J. Sanchez-Barriga, D. Marchenko, P. Hlawenka, P. S. Mandal, and O. Rader, Nat. Commun. 6, 7610 (2015).ADSCrossRefGoogle Scholar
  4. 4.
    A. Y. Tontegode, Prog. Surf. Sci. 38, 201 (1991).ADSCrossRefGoogle Scholar
  5. 5.
    A. M. Shikin, G. V. Prudnikova, V. K. Adamchuk, F. Moresco, and K.-H. Rieder, Phys. Rev. B: Condens. Matter 62, 13202 (2000).ADSCrossRefGoogle Scholar
  6. 6.
    Yu. S. Dedkov, A. M. Shikin, V. K. Adamchuk, S. L. Molodtsov, C. Laubschat, A. Bauer, and G. Kaindl, Phys. Rev. B: Condens. Matter 64, 035405 (2001).ADSCrossRefGoogle Scholar
  7. 7.
    C. Riedl, C. Coletti, T. Iwasaki, A. A. Zakharov, and U. Starke, Phys. Rev. Lett. 103, 246804 (2009).ADSCrossRefGoogle Scholar
  8. 8.
    A. Nagashima, N. Tejima, and C. Oshima, Phys. Rev. B: Condens. Matter 50, 17487 (1994).ADSCrossRefGoogle Scholar
  9. 9.
    M. Weser, E. N. Voloshina, K. Horn, and Y. S. Dedkov, Phys. Chem. Chem. Phys. 13, 7534 (2011).CrossRefGoogle Scholar
  10. 10.
    O. Vilkov, A. Fedorov, D. Usachev, L. V. Yashina, A. V. Generalov, K. Borygina, N. I. Verbitskij, A. Grüneis, and D. I. Vyalikh, Nat. Sci. Rep. 3, 2168 (2013).ADSGoogle Scholar
  11. 11.
    D. Yu. Usachov, A. V. Fedorov, O. Yu. Vilkov, A. V. Erofeevskaya, A. S. Vopilov, V. K. Adamchuk, and D. V. Vyalykh, Phys. Solid State 57 (5), 1040 (2015).ADSCrossRefGoogle Scholar
  12. 12.
    A. Grüneis, K. Kummer, and D. V. Vyalikh, New J. Phys. 11, 073050 (2009).ADSCrossRefGoogle Scholar
  13. 13.
    A. Varykhalov and O. Rader, Phys. Rev. B: Condens. Matter 80 (3), 035437 (2009).ADSCrossRefGoogle Scholar
  14. 14.
    A. Varykhalov, D. Marchenko, J. Sànchez-Barriga, M. R. Scholz, B. Verberck, B. Trauzettel, T. O. Wehling, C. Carbone, and O. Rader, Phys. Rev. X 2, 041017 (2012).Google Scholar
  15. 15.
    I. I. Pronin, M. V. Gomoyunova, S. M. Solov’ev, O. Yu. Vilkov, and D. V. Vyalykh, Phys. Solid State 53 (3), 616 (2011).ADSCrossRefGoogle Scholar
  16. 16.
    M. V. Gomoyunova, G. S. Grebenyuk, and I. I. Pronin, Tech. Phys. 56 (6), 865 (2011).CrossRefGoogle Scholar
  17. 17.
    M. V. Gomoyunova, G. S. Grebenyuk, K. M. Popov, and I. I. Pronin, Tech. Phys. 58 (6), 852 (2013).CrossRefGoogle Scholar
  18. 18.
    Ch. Roth, F. U. Hillebrecht, H. B. Rose, and E. Kisker, Phys. Rev. Lett. 70, 3479 (1993).ADSCrossRefGoogle Scholar
  19. 19.
    F. Sirotti and G. Rossi, Phys. Rev. B: Condens. Matter 49, 15682 (1994).ADSCrossRefGoogle Scholar
  20. 20.
    N. Janke-Gilman, M. Hochstrasser, and R. F. Willis, Phys. Rev. B: Condens. Matter 70 (18), 184439 (2004).ADSCrossRefGoogle Scholar
  21. 21.
    I. I. Pronin, M. V. Gomoyunova, D. E. Malygin, D. V. Vyalikh, Yu. S. Dedkov, and S. L. Molodtsov, J. Appl. Phys. 104, 104914 (2008).ADSCrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • G. S. Grebenyuk
    • 1
  • M. V. Gomoyunova
    • 1
  • O. Yu. Vilkov
    • 2
  • B. V. Sen’kovskii
    • 3
  • I. I. Pronin
    • 1
    • 4
  1. 1.Ioffe Physical-Technical InstituteRussian Academy of SciencesSt. PetersburgRussia
  2. 2.St. Petersburg State UniversitySt. PetersburgRussia
  3. 3.Institute of Solid State PhysicsDresden University of TechnologyDresdenGermany
  4. 4.St. Petersburg National Research University of Information Technologies, Mechanics and OpticsSt. PetersburgRussia

Personalised recommendations