Download e-book for kindle: Basic Concepts of X-Ray Diffraction by Emil Zolotoyabko

By Emil Zolotoyabko

Authored by means of a college professor deeply curious about X-ray diffraction-related study, this textbook is predicated on his lectures given to graduate scholars for greater than two decades. It adopts a well-balanced technique, describing uncomplicated recommendations and experimental options, which make X-ray diffraction an unsurpassed approach for learning the constitution of materials.

either dynamical and kinematic X-ray diffraction is taken into account from a unified point of view, within which the dynamical diffraction in single-scattering approximation serves as a bridge among those elements. The textual content emphasizes the basic legislation that govern the interplay of X-rays with subject, but additionally covers intimately classical and sleek purposes, e.g., line broadening, texture and strain/stress analyses, X-ray mapping in reciprocal area, high-resolution X-ray diffraction within the spatial and wave vector domain names, X-ray focusing, inelastic and time-resolved X-ray scattering. This detailed scope, together with differently hard-to-find details on analytic expressions for simulating X-ray diffraction profiles in thin-film heterostructures, X-ray interplay with phonons, coherent scattering of M?ssbauer radiation, and energy-variable X-ray diffraction, makes the publication quintessential for any severe person of X-ray diffraction techniques.

Compact and self-contained, this textbook is acceptable for college students taking X-ray diffraction classes in the direction of specialization in fabrics technological know-how, physics, chemistry, or biology. various uncomplicated illustrations, an easy-to-read form of writing, in addition to particularly brief, simply digestible chapters all facilitate comprehension.

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Extra resources for Basic Concepts of X-Ray Diffraction

Example text

25) where dmax is the maximal d-spacing within unit cell of a crystal. By using Eq. 26) For example, the wavelength range for visible light fits this criterion (Eq. 25)). 6 Ewald’s construction in the case described by Eq. 25). ) with geometrical sizes comparable with ????. However, according to Eq. 25), visible light does not ‘‘feel’’ the periodicity of the atomic network. 7). It means that many diffracted waves, differing in wave vectors k f , can simultaneously propagate within the crystal and, if so, the diffraction process should be treated in the framework of the so-called multiwave approximation.

The Lorentz point is marked by the letter L. normal to crystal surface does not intersect the branches of isoenergetic dispersion surface and, correspondingly, there are no active tie points that give rise to the diffracted waves. We can say that the respective quantum states (diffracted waves) do not exist within a thick crystal. In some sense, the situation is analogous to the formation of the forbidden zone for electrons in crystals (see text related to Eq. 22)). More exactly, it means that, for a certain range of incident angles near the Bragg angle ΘB , the radiation is completely expelled from the crystal and, hence, the ratio between the intensities of the incident and diffraction waves equals unity (neglecting absorption).

The solution of Eq. 33) and Eq. 80) which indeed means total reflection of incident wave, as mentioned above. 15). Only one point from a pair should be taken into account at any angle of incidence when constructing the diffraction field, since the second point will provide only a physically nonsensical solution. The latter means the exponential growth of diffraction intensity with depth when the solution is analytically continued into the total reflection region. On the contrary, the true solution, being analytically continued into the total reflection region, provides the exponential decay of diffraction intensity whenever the diffracted wave penetrates into the crystal depth.

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