Abstract:
Intercalation of graphene on Ir (111) with Sm atoms is studied by methods of thermal desorption spectroscopy and thermionic emission. It is shown that adsorption of samarium at T = 300 K on graphene to concentrations of N⩽ 6 × 1014 atoms cm−2 followed by heating of the substrate leads to practically complete escape of adsorbate underneath the graphene layer. At N> 6 × 1014 atoms cm−2 and increasing temperature, a fraction of adsorbate remains on graphene in the form of two-dimensional “gas” and samarium islands and are desorbed in the range of temperatures of 1000–1200 K. Samarium remaining under the graphene is desorbed from the surface in the temperature range 1200–2150 K. Model conceptions for the samarium–graphene–iridium system in a wide temperature range are developed.
Citation:
E. Yu. Afanas'eva, E. V. Rut'kov, N. R. Gall', “Intercalation of graphene on iridium with samarium atoms”, Fizika Tverdogo Tela, 58:7 (2016), 1413–1418; Phys. Solid State, 58:7 (2016), 1463–1468
\Bibitem{AfaRutGal16}
\by E.~Yu.~Afanas'eva, E.~V.~Rut'kov, N.~R.~Gall'
\paper Intercalation of graphene on iridium with samarium atoms
\jour Fizika Tverdogo Tela
\yr 2016
\vol 58
\issue 7
\pages 1413--1418
\mathnet{http://mi.mathnet.ru/ftt9933}
\elib{https://elibrary.ru/item.asp?id=27368694}
\transl
\jour Phys. Solid State
\yr 2016
\vol 58
\issue 7
\pages 1463--1468
\crossref{https://doi.org/10.1134/S1063783416070027}
Linking options:
https://www.mathnet.ru/eng/ftt9933
https://www.mathnet.ru/eng/ftt/v58/i7/p1413
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A. S. Komolov, E. F. Lazneva, Yu. M. Zhukov, S. A. Pshenichnyuk, E. V. Agina, D. I. Dominskii, D. S. Anisimov, D. Yu. Parashchuk, “Atomic composition and stability of Langmuir–Blodgett monolayers based on siloxane dimer of quaterthiophene on the surface of polycrystalline gold”, Phys. Solid State, 59:12 (2017), 2491–2496