Автор |
W C Tennant |
Дата выпуска |
1992-08-17 |
dc.description |
The Mossbauer single-crystal experiment is discussed with particular reference to the low-symmetry resonant sites. It is demonstrated that ambiguities associated with multiple, symmetry-related resonant sites (that is, sites whose Laue class is lower than that of the host crystal) are resolvable provided the absorber recoilless fractions can be precisely measured. A general computer program, MOSREF, is described that enables simulation of single-crystal spectra and/or refinement of Mossbauer parameters for a <sup>57</sup>Fe centre in a site of any known symmetry in a host crystal of any known symmetry. The procedures are illustrated for a couple of ideal examples: a triclinic site in a monoclinic crystal and a monoclinic site in a trigonal crystal. Applications to recent experiments with the sheet micas biotite and muscovite are given. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Analysis of single-crystal Mossbauer data in low-symmetry <sup>57</sup>Fe centres |
Тип |
paper |
DOI |
10.1088/0953-8984/4/33/012 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
6993 |
Последняя страница |
7008 |
Аффилиация |
W C Tennant; New Zealand Inst. for Ind. Res. & Dev., Wellington, New Zealand |
Выпуск |
33 |