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Tennantite: multi-temperature crystal structure, phase transition and electronic structure of synthetic Cu12As4S13статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 сентября 2019 г.
- Авторы: Yaroslavzev A.A., Mironov A.V., Kuznetsov A.N., Dudka, A P., Khrykina
- Журнал: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
- Том: 75
- Год издания: 2019
- Издательство: International Union of Crystallography
- Местоположение издательства: United Kingdom
- Первая страница: 634
- Последняя страница: 642
- DOI: 10.1107/S2052520619007595
- Аннотация: The structure of synthetic tennantite Cu12As4S13 was investigated at various temperatures in the 90–293 K range. It crystallizes in space group I{\overline 4}3m. No structural transformation was observed in this temperature range. The structures were refined in anharmonic approximation for atomic displacements and electron density maps were refined using the maximum entropy method. Both approaches indicate a noticeable static disorder of the copper atoms in the triangular sulfur coordination and neighbouring site at high temperatures, whereas these split copper sites are well defined at lower temperatures. One particle potential is used to describe the behaviour of atoms at these copper sites. Such behaviour may be the structural reason for changes in magnetic properties.
- Добавил в систему: Миронов Андрей Вениаминович