Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Unoccupied states evolution with oxidation of ultrathin Mg, Zn and Cd layers on SrTiO3(100) surfaces. / Moller, PJ; Komolov, SA; Lazneva, EF; Komolov, AS.
в: Applied Surface Science, Том 175, 15.05.2001, стр. 663-669.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Unoccupied states evolution with oxidation of ultrathin Mg, Zn and Cd layers on SrTiO3(100) surfaces
AU - Moller, PJ
AU - Komolov, SA
AU - Lazneva, EF
AU - Komolov, AS
PY - 2001/5/15
Y1 - 2001/5/15
N2 - An unoccupied density of states (DOS) evolution under oxidation of ultrathin Mg, Zn and Cd layers on SrTiO3(1 0 0)-(2 x 2) substrates are investigated. The metal deposition and subsequent oxidation were studied in situ under UHV conditions by means of LEED, AES, TCS and work function measurements. An appearance of metal- and oxygen-derived bands of the unoccupied DOS was traced in the TC spectra. Metal oxidation was followed by the hybridization of metal and oxygen orbitals and by the appearance of the mainly O 2p oxygen-derived bands, which are characterized by a set of DOS maxima, located at the following energies (above the Fermi level): 8.0, 11.5, 14.3, 15.0 and 19.0 eV for MgO; 6.0, 8.1, 16.8 and 20.5 eV for ZnO and 7.5, 10.0 and 12.7 eV for CdO. The results obtained are discussed in comparison with previously published experimental and theoretical data on unoccupied DOS in metal oxides. (C) 2001 Elsevier Science B.V. All rights reserved.
AB - An unoccupied density of states (DOS) evolution under oxidation of ultrathin Mg, Zn and Cd layers on SrTiO3(1 0 0)-(2 x 2) substrates are investigated. The metal deposition and subsequent oxidation were studied in situ under UHV conditions by means of LEED, AES, TCS and work function measurements. An appearance of metal- and oxygen-derived bands of the unoccupied DOS was traced in the TC spectra. Metal oxidation was followed by the hybridization of metal and oxygen orbitals and by the appearance of the mainly O 2p oxygen-derived bands, which are characterized by a set of DOS maxima, located at the following energies (above the Fermi level): 8.0, 11.5, 14.3, 15.0 and 19.0 eV for MgO; 6.0, 8.1, 16.8 and 20.5 eV for ZnO and 7.5, 10.0 and 12.7 eV for CdO. The results obtained are discussed in comparison with previously published experimental and theoretical data on unoccupied DOS in metal oxides. (C) 2001 Elsevier Science B.V. All rights reserved.
KW - density of unoccupied states
KW - metal oxide surfaces
KW - total current spectroscopy
KW - TOTAL CURRENT SPECTROSCOPY
KW - X-RAY-ABSORPTION
KW - ELECTRONIC-STRUCTURE
KW - OXIDE
KW - GROWTH
M3 - статья
VL - 175
SP - 663
EP - 669
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
Y2 - 9 July 2000 through 13 July 2000
ER -
ID: 18881718