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Structural Research / Strukturforschung

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概要 107 In this way the absolute values of the structure factors may be found, not the phases (6. 8). The problem to find these phases is the phase problem. The present article will treat the following to...pics. At first the description of the ideal crystal will be given in Chap. B. The underlying principles of this description are the concepts of reciprocal lattice, FOURIER synthesis and sym metry. The evaluation of the intensity will then follow in Chap. C and D. Chap. E is concerned with the phase problem and related topics. Though this article treats the analysis of crystal structures, the fundamental concepts for other structures will here be found too. But these topics, and the experimental methods, will l find their place elsewhere . B. Description of the crystalline state. I. Lattice theory. a) The direct lattice. 8. Introduction. In Sect. 3, a description of the ideal crystal was given: The space, occupied by a crystal, is divided into congruent parallelepipeds, each with the same orientation. This parallelepiped is defined by the three basic vectors, a, band c, drawn from an origin 0 (Fig. 2), and is called the primitive cell. This cell is filled with atoms (or ions), and the same configuration of atoms is repeated in space. It has been aptly called a three-dimensional wallpaper, as on a wallpaper the same pattern is repeated again and again.続きを見る
目次 Inhalts verzeichnis
Les méthodes expérimentales des déterminations de structures cristallines par rayons X
A. Les apparails de la radiocristallographie
B. Du diagramme au réseau réciproque
C. Du réseau réciproque à la structure
D. Applications des méthodes radiocristallographiques
Bibliographie générale
Theoretical Principles of Structural Research X-rays
A. Fundamental concepts in structure analysis
B. Description of the crystalline state
C. The fundamental concepts in X-ray scattering
D. The intensity of the diffracted X-rays
E. Problems of structure analysis
General references
Etude de la structure des fluides et des substances amorphes au moyen de la diffusion des rayons X
A. Théorie de la diffusion des rayons X par les fluides
B. Etude expérimentale de la diffusion des rayons X par les fluides
C. Etude des substances amorphes
Bibliographie générale
Size of Particles and Lattice Defects
A. Size and shape of particles from small angle x-ray scattering
B. Lattice defects
Elektroneninterferenzen
I. Aufbau von Interferenzapparaturen
II. Die Interferenzen der Elektronenwellen
III. Anwendung der Elektroneninterferenzmethode auf spezielle Probleme
IV. Beugung der Elektronenwellen
Zusammenfassende Darstellungen
Neutron Diffraction and Interference
I. Introduction
II. Theory of the scattering of thermal neutrons
III. Experimental techniques
IV. Measurement of nuclear properties by use of neutron optics
V. Determination of the structures of non-magnetic materials by neutron diffraction and refraction
VI. Studies of magnetic materials by neutron diffraction and refraction
General references
Sachverzeichnis (Deutsch-Englisch)
Subject Index (English-German)
Table des matières (Français).
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登録日 2020.06.27
更新日 2020.06.28