Über den Einfluß der Anharmonizität auf die thermische Röntgenstreuung an Kristallen
Über den Einfluß der Anharmonizität auf die thermische Röntgenstreuung an Kristallen
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 sma...
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Personal Name(s): | Hahn, H. |
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Ludwig, W. | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich Zentralbibliothek, Verlag
1960
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Physical Description: |
19 p. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Berichte der Kernforschungsanlage Jülich
0005 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
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. |