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- W2000697240 abstract "The “cluster-embedded chain”-method is applied to calculate extinction rules valid for sharp and diffuse LEED-reflections in ordered and disordered crystal surfaces. Besides the wellknown absences due to glide planes with a translational component parallel to the surface, there are others due to translations vertical to it. Since the crystal surface has no translation symmetry in this direction, these extinctions are no longer strictly fulfilled. The behaviour of sharp and diffuse reflections of a stepped surface is discussed with respect to the differences between a kinematic and a dynamic calculation.Die „cluster-embedded chain”-Methode wird fur die Berechnung von scharfen und diffusen LEED-Reflexen geordneter und fehlgeordneter Kristalloberflachen angewendet. Neben den bekannten Ausloschungsregeln fur Gleitspiegelebenen mit paralleler Gleitkomponente zur Oberflache gibt es auch Ausloschungen, die auf Translationen senkrecht dazu zuruckzufuhren sind. Da die Kristalloberflache keine Translationssymmetrie in dieser Richtung besitzt, werden diese Ausloschungen nicht streng erfullt. Das Verhalten von scharfen und diffusen Reflexen einer gestuften Oberflache wird im Zusammenhang mit den Unterschieden zwischen einer dynamischen und kinematischen Berechnung diskutiert." @default.
- W2000697240 created "2016-06-24" @default.
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- W2000697240 date "1978-09-16" @default.
- W2000697240 modified "2023-09-25" @default.
- W2000697240 title "Systematic absences in low energy electron diffraction" @default.
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- W2000697240 doi "https://doi.org/10.1002/pssa.2210490113" @default.
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