|
Surface physics, thin films
Valence transition investigation in the О2–Yb–Si(111) system by means of the angle-resolved photoelectron spectroscopy method
M. V. Kuzmin, M. A. Mitsev Ioffe Institute, St. Petersburg
Abstract:
Investigations of the Yb–Si(111) and О2–Yb–Si(111) structures are carried out by means of the angle-resolved photoelectron spectroscopy method, and data about distribution of two- and three-valence ions in ytterbium nanofilms are obtained in the case when an adsorbed molecules layer on their surface is not fully formed yet, and Yb2+ → Yb3+ valence transition is not completed. It is shown that distribution of Yb2+ and Yb3+ ions deep into the nanofilms is close to isotropic, and that its spread is 9 or more monolayers. The obtained results indicate that all atoms of the nanofilm participate in formation of the ytterbium 5d band, stimulated by adsorbed molecules, confirming assumptions made in earlier publications.
Received: 30.03.2017
Citation:
M. V. Kuzmin, M. A. Mitsev, “Valence transition investigation in the О2–Yb–Si(111) system by means of the angle-resolved photoelectron spectroscopy method”, Fizika Tverdogo Tela, 59:10 (2017), 2032–2036; Phys. Solid State, 59:10 (2017), 2058–2062
Linking options:
https://www.mathnet.ru/eng/ftt9439 https://www.mathnet.ru/eng/ftt/v59/i10/p2032
|
Statistics & downloads: |
Abstract page: | 49 | Full-text PDF : | 13 |
|