%0 Report
%A Hahn, H.
%A Ludwig, W.
%T Über den Einfluß der Anharmonizität auf die thermische Röntgenstreuung an Kristallen
%V 0005
%N Juel-0005-RW
%C Jülich
%I Kernforschungsanlage Jülich Zentralbibliothek, Verlag
%M FZJ-2016-03811
%M Juel-0005-RW
%B Berichte der Kernforschungsanlage Jülich
%P 19 p.
%D 1960
%X 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.
%F PUB:(DE-HGF)3 ; PUB:(DE-HGF)29
%9 BookReport
%U https://juser.fz-juelich.de/record/811323