Physics of the Solid State
Origin of the thermal stability of oxygen molecules on the ytterbium nanofilm surface
Kuzmin M. V.
1, Mittsev M.A.1, Monyak A.A.1, Sorokina S. V.
1
1Ioffe Institute, St. Petersburg, Russia
Email: m.kuzmin@mail.ioffe.ru
The effect of temperature on the properties of O2-Yb-Si(111) film structures has been studied using X-ray photoelectron spectroscopy. It is established that the adsorption of oxygen molecules on the ytterbium nanofilm surface is non-dissociative and leads to the formation of a stable adsorption complex, which is not destroyed when heated at 900-1050 K. The high thermal stability of this complex is due to the fact that the adsorbed molecules have a dipole moment and are oriented to the surface by the negatively charged end and into the vacuum by the positively charged one. It is shown that the molecule polarization depends on the thickness of ytterbium nanofilms (size effect). A model is proposed that allows us to qualitatively explain the results obtained Keywords: surface, nanofilms, oxygen molecule, ytterbium, thermal stability, X-ray photoelectron spectroscopy.
- T.A. Saleh. Surface science of adsorbents and nanoadsorbents. In: Interface Science and Technology. Elsevier, Academic Press, London. V. 34. (2022). 324 p
- Synthesis and modification of nanostructured thin films / Ed. I.N. Mihailescu. MDPI, Basel (2020). 261 p
- B. Johansson. Phys. Rev. B 19, 6615-9 (1979)
- E.R. Ylvisaker, J. Kunevs, A.K. McMahan, W.E. Pickett. Phys. Rev. Lett. 102, 246401 (2009)
- D.V. Buturovich, M.V. Kuzmin, M.V. Loginov, M.A. Mitsev. FTT 57, 9, 1821 (2015). (in Russian)
- D.V. Buturovich, M.V. Kuzmin, M.A. Mitzev. Pisma v ZhTF 38, 21, 22 (2012). (in Russian)
- M.V. Kuzmin, M.A. Mitsev, FTT 64, 7, 874 (2022). (in Russian)
- M.V. Kuzmin, M.A. Mitsev, N.M. Blashenkov. FTT 59, 8, 1612 (2017). (in Russian)
- M.V. Kuzmin, M.A. Mitsev, ZhTF 90, 8, 1359 (2020). (in Russian)
- M.V. Kuzmin, M.A. Mitsev, FTT 64, 8, 1091 (2022). (in Russian)
- D.A. Shirley. Phys. Rev. B 5, 4709 (1972)
- C.J. Powell, A. Jablonski. NIST Electron Inelastic-Mean-Free-Path Database. Version 1.2. SRD 71. National Institute of Standards and Technology. MD, Gaithersburg (2010)
- G.H. Major, N. Farley, P.M.A. Sherwood, M.R. Linford, J. Terry, V. Fernandez, K. Artyushkova. J. Vac. Sci. Technol. A 38, 061203 (2020)
- G. Adachi, N. Imanaka. Chem. Rev. 98, 1479 (1998)
- M.V. Kuzmin, M.A. Mitsev, FTT 54, 10, 1988 (2012). (in Russian)
- M.V. Kuzmin, M.A. Mitsev, ZhTF 93, 829, 2023 (2013). (in Russian)
- J.R. Smith. Phys. Rev. 181, 522 (1969)
- N.D. Lang, W. Kohn. Phys. Rev. B 1, 12, 4555 (1970)
- G. Grey. Elektrony i khimicheskaya svyaz'. Mir, M. (1967), P. 72. (in Russian).
Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.
Дата начала обработки статистических данных - 27 января 2016 г.
