Book/Report

FZJ-2016-03811

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Über den Einfluß der Anharmonizität auf die thermische Röntgenstreuung an Kristallen

Hahn, H.FZJ* ; Ludwig, W.FZJ*

1960
Kernforschungsanlage Jülich Zentralbibliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/11834

Report No.: Juel-0005-RW

Abstract: The effect of vibrational anharmonicity on the thermal scattering of X-rays from crystals is calculated for temperatures above the Debye temperature. A revised method of interpreting the experimental data is suggested. The (temperature dependent) dispersion curves (frequency vs. wave-vector) for small wave-vectors are determined by the isothermal rather than the adiabatic elastic constants. A procedure is outlined to extrapolate from the (temperature dependent) scattering data the (temperature independent) dispersion curves which correspond to the harmonic approximation.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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