Results 201 to 210 of about 36,268 (249)

Tiling of a Nb(110) surface with NbO crystals nanosized by the NbO/Nb misfit

Physical Review B, 2002
The overlayer covering a (110) face of a Nb crystal annealed at 1500--2000 K in UHV has been studied by Auger electron and photoemission spectroscopies, low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM). This layer, which results from the surface segregation of oxygen dissolved in Nb bulk, corresponds to a thin niobium ...
I. Arfaoui, J. Cousty, H. Safa
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Boranil and Related NBO Dyes: Insights From Theory

Journal of Chemical Theory and Computation, 2013
The simulations of excited-state properties, that is, the 0-0 energies and vibronic shapes, of a large panel of fluorophores presenting a NBO atomic sequence have been achieved with a Time-Dependent Density Functional Theory (TD-DFT) approach. We have combined eight hybrid exchange-correlation functionals (B3LYP, PBE0, M06, BMK, M06-2X, CAM-B3LYP ...
Chibani, Siwar, Charaf-Eddin, Azzam, Le Guennic, Boris, Jacquemin, Denis   +3 more
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Многослойные наноструктуры Mg/NbO

2022
Работа выполнена при финансовой поддержке РФФИ (проект 15-02-05920).
Smirnov, A. N., Semenenko, K. I., Stognei, O. V., Sitnikov, A. V.   +3 more
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Electrical properties of NbO and NbO2

Journal of Physics and Chemistry of Solids, 1969
Abstract The thermoelectric power and electrical conductivity were measured for NbO and NbO2 as functions of temperature at the limiting oxygen activities for the thermodynamic stability of each of the compounds. The electrical properties of NbO2 were essentially independent of oxygen pressure in the temperature range 50–1000°C, and the properties of
James A. Roberson, Robert A. Rapp
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The luminescence of K2(NbO)2Si4O12

Journal of Alloys and Compounds, 1992
The luminescence of K2(NbO)2Si4O12 is described and discussed. It consists of a greenish emission below room temperature. The results are discussed in connection with the recently described crystal structure and the nonlinear optical properties of this compound.
G. Blasse, G.J. Dirksen, M.P. Crosnier, Y. Piffard   +3 more
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Untersuchungen zur Struktur von Niobmonoxid NbO

Zeitschrift für anorganische und allgemeine Chemie, 1962
AbstractUm Ursachen für die kristallchemische Sonderstellung von Niobmonoxid NbO zu finden, wurde dessen Fähigkeit zur Mischkristallbildung mit einigen anderen verwandten Monoxiden geprüft. Bisher ließen sich solche Mischkristalle nur mit Vanadiumoxid VO nachweisen.
G. Brauer, H. Morawietz
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Non-covalent interactions – QTAIM and NBO analysis

Journal of Molecular Modeling, 2012
MP2(full)/6-311++G(3df,3pd) calculations were carried out on complexes linked through various non-covalent Lewis acid - Lewis base interactions. These are: hydrogen bond, dihydrogen bond, hydride bond and halogen bond. The quantum theory of ´atoms in molecules´ (QTAIM) as well as the natural bond orbitals (NBO) method were applied to analyze properties
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Plasma resonance in TiO, VO and NbO

Journal of Solid State Chemistry, 1970
Reflectance spectra of TiO, VO, and NbO have been recorded. All these oxides show reflectance minima due to plasma edges. The energy corresponding to the reflectance minimum in TiO varies with stoichiometry (in the homogeneity range) and this phenomenon has been related to the transport properties of these oxides.
C.N.R. Rao, W.E. Wahnsiedler, J.M. Honig
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Superconductivity in the TiO and NbO systems

Journal of Low Temperature Physics, 1972
This paper presents electrical resistivity and superconductivity studies for the B1 (NaCl) structure oxides of titanium, vanadium, and niobium. In samples of nominal composition TiO x , VO x , and NbO x ,x was varied from 0.8 to 1.2.
J. K. Hulm, C. K. Jones, R. A. Hein, J. W. Gibson   +3 more
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Amorphous NbO films prepared by reactive evaporation

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1990
Reactive evaporation technique was employed to produce amorphous NbO thin films directly. It was revealed that the sheet electrical resistance of the amorphous NbO films was much greater than that of the crystalline counterpart. The thermal stability of the amorphous NbO films was studied by in situ annealing, and the crystallization temperature of the
J. R. Ding, X. Zhou, J. N. Bai, B. X. Liu   +3 more
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