TY  - RPRT
AU  - Hahn, H.
AU  - Ludwig, W.
TI  - Über den Einfluß der Anharmonizität auf die thermische Röntgenstreuung an Kristallen
VL  - 0005
IS  - Juel-0005-RW
CY  - Jülich
PB  - Kernforschungsanlage Jülich Zentralbibliothek, Verlag
M1  - FZJ-2016-03811
M1  - Juel-0005-RW
T2  - Berichte der Kernforschungsanlage Jülich
SP  - 19 p.
PY  - 1960
AB  - 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.
LB  - PUB:(DE-HGF)3 ; PUB:(DE-HGF)29
UR  - https://juser.fz-juelich.de/record/811323
ER  -