X 82 XPS study of the nitrides, oxides and oxynitrides of titanium [] / M. V. Kuznetsov, Ju. F. Zhuravlev, V. A. Zhilyaev, V. A. Gubanov // Journal of Electron Spectroscopy and Related Phenomena. - 1992. - V. 58, N 1-2. - С. 1-9 . - ISSN 0368-2048 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СПЕКТРОСКОПИЯ РЕНТГЕНОФОТОЭЛЕКТРОННАЯ -- РЕНТГЕНОФОТОЭЛЕКТРОННАЯ СПЕКТРОСКОПИЯ -- СПЕКТРОСКОПИЯ РЕНТГЕНОВСКАЯ -- РЕНТГЕНОВСКАЯ СПЕКТРОСКОПИЯ -- СПЕКТРОСКОПИЯ ФОТОЭЛЕКТРОННАЯ -- ФОТОЭЛЕКТРОННАЯ СПЕКТРОСКОПИЯ -- НИТРИД ТИТАНА -- ОКСИД ТИТАНА -- ОКСИНИТРИД ТИТАНА -- Ti -- ТИТАН |
V 18 Valence band spectra and electronic structure of manganites and related oxides [] / N. A. Ovechkina, V. R. Galakhov, M. Demeter, M. Neumann, N. I. Lobachevskaya, L. V. Elokhina, E. Z. Kurmaev // Conference on Advanced Magneto-Resistive Materials (March 4-7, 2001): Abstr. - 2001. - С. 2-31 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЭЛЕКТРОННАЯ СТРУКТУРА -- СТРУКТУРА ЭЛЕКТРОННАЯ -- МАНГАНИТЫ -- ОКСИДЫ -- РЕНТГЕНОФОТОЭЛЕКТРОННАЯ СПЕКТРОСКОПИЯ -- СПЕКТРОСКОПИЯ РЕНТГЕНОФОТОЭЛЕКТРОННАЯ -- РЕНТГЕНОЭМИССИОННАЯ СПЕКТРОСКОПИЯ -- СПЕКТРОСКОПИЯ РЕНТГЕНОЭМИССИОННАЯ -- ВАЛЕНТНОСТЬ -- LaMnO3 -- КРИСТАЛЛЫ -- КЕРАМИКА -- НЕСТЕХИОМЕТРИЯ -- LiMnO2 |
X 82 XPS study of the Ln 5p,4f-electronic states of lanthanides in Ln2O3 / Yu. A. Teterin, A. Yu. Teterin, I. O. Utkin, M. V. Ryzhkov // Journal of Electron Spectroscopy and Related Phenomena. - 2004. - Vol. 137-140. - P. 601-605 : il. - Bibliogr. : p. 605 (11 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЛАНТАНИДЫ -- СПЕКТРОСКОПИЯ РЕНТГЕНОФОТОЭЛЕКТРОННАЯ Аннотация: The present work analyses the fine structure of the low binding energy (Eb, 0–50 eV) X-ray photoelectron spectra XPS of lanthanide (La through Lu excepted for Pm) oxides, and compares it with the non-relativistic X alfa-discrete variation calculation results for the clusters reflecting the close environment of lanthanides in oxides. The obtained results show that the Ln 4fn-electrons of lanthanides in oxides by their spectral parameters have much in common with the M 3d-electrons in oxides of the 3d-transition metals. According to these data, the Ln 4f shell of lanthanides is rather outer and can participate in the formation of molecular orbitals in compounds. The XPS data at least do not contradict the theoretical suggestion about the significant participation of the Ln 4f-electrons in formation of the molecular orbitals in the studied materials. The spectra in the Ln 5p–O 2s binding energy region of the studied lanthanide oxides were found to exhibit the complicated structure instead of separated peaks due to the electrons of the Ln 5p3/2,5/2 and O 2s atomic shells. Taking into account the energy differences between the inner (Ln 3d) and outer (Ln 5p) electronic shells for some metallic lanthanides and their oxides, the Ln 5p atomic shells were shown to participate in the formation of the inner valence molecular orbitals (IVMO). That agrees qualitatively with the calculation results Полный текст |