Atomic and electronic structures of lutetium oxide Lu{sub 2}O{sub 3}

Journal Article · Fri Feb 15 00:00:00 EST 2013 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776113020131· OSTI ID:22156343

Asanova, T. I.; Erenburg, S. B. ^[1]; Shvets, V. A.; Gritsenko, V. A. ^[2]

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1. Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation)
2. Russian Academy of Sciences, Institute of Semiconductor Physics, Siberian Branch (Russian Federation)

The chemical composition, electronic structure, structure, and physical properties a lutetium oxide Lu{sub 2}O{sub 3} film are studied by X-ray photoelectron spectroscopy, ellipsometry, and X-ray absorption spectroscopy. The short-range order in Lu{sub 2}O{sub 3} is found to correspond to its cubic modification. The binding energies of the 1s and 2p levels of oxygen and the 4d{sub 5/2} and 4f{sub 7/2} levels of lutetium are 529.2, 5.0 and 7.4, 195.9 eV, respectively. The energy gap determined from the electron energy loss spectrum of the film is 5.9 eV. The electron energy loss spectra have two peaks at 17.4 and 22.0 eV, which can be attributed to the excitation of bulk plasma oscillations. The dispersion of the refractive index is measured by spectral ellipsometry. The refractive index is shown to increase from 1.82 at 1.5 eV to 2.18 at 5.0 eV, and the high-frequency permittivity of Lu{sub 2}O{sub 3} is 3.31.

• OSTI ID: 22156343
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 116, Issue 2; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
BINDING ENERGY
CRYSTAL STRUCTURE
DISPERSIONS
ELECTRONIC STRUCTURE
ELLIPSOMETRY
ENERGY GAP
ENERGY-LOSS SPECTROSCOPY
EV RANGE
EXCITATION
FILMS
LUTETIUM OXIDES
MODIFICATIONS
OSCILLATIONS
PERMITTIVITY
REFRACTIVE INDEX
X-RAY PHOTOELECTRON SPECTROSCOPY
X-RAY SPECTROSCOPY