Publication details
Multiple wave scattering on a bordered crystal. Translation symmetry breaking and forbidden reflections
| Authors | |
|---|---|
| Year of publication | 2012 |
| Type | Article in Periodical |
| Magazine / Source | ACTA CRYSTALLOGRAPHICA SECTION A |
| MU Faculty or unit | |
| Citation | |
| Web | https://journals.iucr.org/a/issues/2012/04/00/td5006/ |
| Doi | http://dx.doi.org/10.1107/S0108767312014705 |
| Keywords | dynamical diffraction theory; forbidden reflections |
| Description | The interaction of a scalar wave (thermal neutrons) with a single Si crystal is treated using Ewald's self-consistent field method. Considering from the very beginning the two-dimensional translation symmetry of the problem, the reflectivities of allowed and forbidden reflections in the Bragg geometry valid for both coplanar and non-coplanar cases are derived. It is shown that there exists a very narrow reflectivity peak of the forbidden reflection as a result of the symmetry breaking due to a crystal surface. |
| Related projects: |