Eindimensionale Fehlordnung in Kristallen und ihr Einfluss auf die Röntgeninterferenzen. II. Berechnung der fehlgeordneten dichtesten Kugelpackungen mit Wechselwirkungen der Reichweite 3

The general theory of X-ray diffraction by a one-dimensionally disordered structure, developed in a previous communication, is here applied to the special case of close-packed structures having a `three-layer influence' on the arrangement of the neighbouring planes. The intensity of diffraction is expressed in terms of two quantities [Hebrew aleph]_[nu] and K_[nu] which are themselves functions of [alpha] and [beta], where (1 - [alpha]) is the probability that a fourth layer continues a hexagonal arrangement and [beta] is the probability that a fourth layer continues a cubic arrangement of the three preceding layers. The line widths and displacements of the positions of certain reflexion-maxima depend on the degree of order and so enable this quantity to be determined experimentally.