Neutron Scattering by an Anharmonic Crystal
- 15 August 1963
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 131 (4) , 1420-1427
- https://doi.org/10.1103/physrev.131.1420
Abstract
Baym's treatment of coherent scattering of slow neutrons by a crystal is examined and modified to include effects due to the cubic-anharmonic term in the lattice potential to second order in the coupling constant. Corrections to the Debye-Waller factor and to the "one-phonon" resonance peak are obtained, which appear to be negligible (≈0.01%) for the case of a Bravais lattice and certainlyKeywords
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