defect structure

defect structure

[di′fekt ‚strək·chər]
(solid-state physics)
A crystal structure in which some atomic positions are occupied by atoms other than those that would be found in a perfect crystal, or are unoccupied.
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In this work, the geometries and electronic states of two preferable types of divacancy defects in finite-size hexagonal graphene flakes (HGFs) were calculated by self-consistent-charge density-functional tight-binding (SCCDFTB) method for the first time, which are three pentagons and three heptagons composed (555777) divacancy defect structure and two pentagons side with octagon composed (585) structures, respectively.
Numerous diagrams display the results of calculating point defect concentrations for a series of pure and doped oxides of transition metals with varying M/O ratios, crystallographic structure, and point defect structure. ([umlaut] Ringgold, Inc., Portland, OR)
Modal analysis of defect structure did with study of frequency pattern and they can be used with the columns of the matrix [S] in equation (8).
Among them are adsorption, defect structure, gas discharge, oxidation, resistivity, and toughness.
As synthesized, CNF exists in types of impurities (amorphous carbon) and graphite (graphene and defect structure) as well as metal based catalyst (metal carbide).
Stevens Kalceff, "Cathodoluminescence microcharacterization of the defect structure of irradiated hydrated and anhydrous fused silicon dioxide," Physical Review B, vol.
Among their topics are the effect of thermal annealing on characteristics of polycrystalline silicon used for solar cells, the dielectric function and defect structure of CdTe implanted by 350-keV Bi ions and light-induced passivity of silicon by iodine ethanol solution Reproduced from typescripts.
The peaks at 350, 500 and 600[degrees]K are found in nearly all natural calcite specimens but the 600[degrees]K is probably due to lattice defect structure rather than [Ni.sup.2+] or [Co.sup.2+] .
Mazenko emphasizes correlations and structures in space, particularly the broken symmetry and defect structure associated with phase changes in condensed matter systems.
[8] have studied the defect structure of [Zn.sub.2]Sn[O.sub.4] and suggested that the defect structure of [Zn.sub.2]Sn[O.sub.4] is mainly due to the oxygen deficiency with ntype conductivity.
Raman spectroscopy is widely used to investigate the near-surface defect structure because of its surface sensitiveness, accordingly, the increase of peak height could be attributed to the increase of oxygen vacancies in the titanates.
It concerns especially magnetic and electrical characteristics because they are extremely sensitive to the defect structure of samples.