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FORBIDDEN/NON-FORBIDDEN BRAGG REFLECTIONS STUDY UNDER PHASE TRANSITIONS AND EXTERNAL INFLUENCESстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2021 г.
- Авторы: Ovchinnikova E., Dmitrienko V., Zchornak M., Oreshko A., Kozlovskaya K.
- Журнал: Acta Crystallographica Section A: Foundations of Crystallography
- Том: 75
- Год издания: 2019
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- Первая страница: e285
- Последняя страница: e285
- DOI: 10.1107/S2053273319092714
- Аннотация: A method has recently been developed that demonstrates a record sensitivity to atomic displacement, which uses a study of the energy dependence near the absorption edges of weak Bragg reflections [1]. In this method, the anisotropic properties of resonant X-ray scattering are neglected. However, the resonant anisotropic contribution to the scattering amplitude always exists, although it is small compared with charge scattering. We propose to use polarization analysis to study the resonant scattering of ʍ-polarized radiation into ʋpolarization in allowed reflections. The ʍ-ʋ channel is not forbidden in resonant X-ray scattering close to the absorption edges, in contrast to the conventional Thomson scattering. The study of this scattering channel can provide additional information when studying phase transitions and the effects of external influences on crystals.
- Добавил в систему: Овчинникова Елена Николаевна