Figure 1dalso shows that the chalcogen atoms have minor effect on∠MXM compared with the transition metals with differentd-electron counts, but a trend can still be observed: the∠MXM decreases with increasing atomic number of the chalcogen. For example, the∠MXM of TiS2, TiSe2and TiTe2decrea...
Doping with RE metals forms a localized impurity level in the band structure of ZnO and alters the band structure. The electronic structure of ZnO is also affected by the charge transfer between the VB or CB of ZnO and the 4f or 5d electrons of RE metals. Although RE doping provides some...
The total gas flow rate was kept constant and equal to 500 SCCM by using a mass flow controller (MFC). The O3 levels were calibrated by the same toxic gas detector. The sensor response was S = Rair/RO3, where Rair and RO3 are the electric resistances of the device exposed to dry ...
correspond to elemental Ta metals and its oxides as TaO2(red) that are the two main species. The Ta 4f5/2 (black) and Ta 4f7/2 (green) binding energies are around 25.9 and 23.8 eV indicating that tantalum is in carbide environment (Fig.4b). TaO2has weak peaks probably that arise f...
BORIDES AND SILICIDES OF THE TRANSITION METALS A study was made of the borides and silicides of the transition elements with particular emphasis on their crystal chemistry. The crystallographic constant... B Aronsson - 《Arkiv Kemi》 被引量: 7发表: 1960年 ELECTRONIC STRUCTURE OF SOME HEXABORID...
XPS and UPS studies of pyrite compounds (CoX2 → CuX2, X: S; Se); Investigation of the insulator-metal transition in the NiS2−xSex system 来自 Elsevier 喜欢 0 阅读量: 13 作者: G. Krill and A. Amamou DOI: 10.1016/0038-1098(80)90795-4 年份: 1980 收藏 引用 批量引用 ...
The white-line ratio L 3 / L 2 was found to increase between d 0 and d 5 , and decrease between d 5 and d 10 , consistent with previous results for the transition metals and their oxides. The intensities of the white lines, normalized to the post-edge background, are linear for ...
Calculations are consistent with both ionic and covalent bonding contributions in the monoxides. The M-O bond strengths exhibit the "double humped" shape, characteristic of many periodic properties of the transition metals. Moreover, the sharp contrast in the calculated bond energies between the ...
The crystal size dependence of the lattice constant in transition metals with a nearly half-filled d-band is theoretically investigated by use of a simple model, which consists of attractive and repulsive interaction energies. The lattice constant is found to depend strongly on the crystal size in...
For prominent lines of the alkali metals, which possess a single electron outside closed shells, experimental precision measurements have provided data with uncertainties as small as 0.15%, and recent calculations for the Li resonance line are estimated to be accurate within 0.002%. For the case ...