QUASI-CRYSTALSTILINGS5-FOLD SYMMETRYSince line defects (dislocations) and point defects (vacancies, self-interstitials, point stacking faults) in Bravais crystals can mutually convert, only theories which comprise these two sorts of defects can be closed in the sense of general field theory. Since ...
Point defects play an important part in determining the physical properties of most crystalline substances, most notably those controlling the transport of matter and the properties that stem from it. They also strongly influence the resistivity of metals by scattering conduction electrons, the low-...
Any deviation from a perfect periodic lattice or structure in a crystal is an imperfection. There are three main types of imperfections, point, line and plane imperfections 1 , of which we shall deal only with the point defects in this chapter. The point imperfections encountered in ionic ...
Point Defects in Ionic Crystals. II. The F Center in KCl, KBr, KI, and NaCl Methods described in a previous paper are applied to the calculation of the electronic structure of the F center in KCl, KBr, KI, and NaCl. Structure of the ions is explicitly taken into account in a region...
Since line defects (dislocations) and point defects (vacancies, self-interstitials, point stacking faults) in Bravais crystals can mutually convert, only t... E Kr?Ner - 《International Journal of Theoretical Physics》 被引量: 76发表: 1990年 Ab initio construction of structure-property relationship...
Crystals: Point Defects B.L.Eyre,J.R.Matthews, inEncyclopedia of Materials: Science and Technology, 2001 (a)Theory Point defectsare centers of perturbation in crystals and they increase the internal energy. For intrinsic defects, if the formation energy for one defect isEf, the free energyFof ...
An essential feature of an ideal crystal lattice is that the environment of an atom in the crystal is identical to the environment of any other equivalent atom. But defects (or imperfections) do occur in crystals. An imperfection is any deviation from a regular lattice. These imperfections may...
point defectsvacancies (crystal)X-ray scattering/ crystalspoint defectsanalytical expressionsX-ray diffuse scattering intensitiesfinite dimensionssubstitutional defectsThe analytical expressions for calculating the intensities of X-ray diffuse scattering from a crystal of finite dimensions and monatomic ...
Modelling point defect dynamics in the crystal growth of silicon The quality of silicon single crystals grown by the Czochralski (CZ) and floating zone (FZ) methods depends on the distribution of microdefects formed by s... RA Brown,D Maroudas,T Sinno - 《Journal of Crystal Growth》 被引量...
Point Defects in Solids. Vol 2. , Point Defects in Solids, Vol. 1. General and Ionic Crystals, Plenum Press, New York, 1972.E. Sonder, W.A. Sibley, in: J.H. Crawford, L.M... H Casey,G Pearson 被引量: 147发表: 1972年 Point Defects as Acid—Base Active Particles in Ionic Cry...