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Mixed Nickel-Gallium Tellurides Ni3-xGaTe2 as a Matrix for Incorporating Magnetic Cations: a Ni3-xFexGaTe2 Seriesстатья
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: 5 июня 2017 г.
- Авторы: Kuznetsov A.N., Stroganova E.A., Zakharova E.Yu, Solopchenko A.V., Sobolev A.V., Presniakov I.A., Kirdyankin D.I., Novotortsev V.M.
- Журнал: Journal of Solid State Chemistry
- Том: 250
- Год издания: 2017
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Первая страница: 90
- Последняя страница: 99
- DOI: 10.1016/j.jssc.2017.03.020
- Аннотация: Using a high-temperature ampoule technique, a series of mixed nickel-iron-gallium metal-rich tellurides with layered structures, Ni3-xFexGaTe2, were prepared and characterized based on X-ray powder diffraction, energy-dispersive spectroscopy, and 57Fe Mössbauer spectroscopy data. These compounds may be regarded as a result of partial substitution of nickel by iron in the recently reported ternary Ni3-xGaTe2 series, which are based on NiAs/Ni2In type of structure. The compositional boundary for the substitution was found to be at x~1. According to the Mössbauer spectroscopy data, the substitution is not statistical, and iron atoms with the increase in x tend to preferentially occupy those nickel positions that are partially vacant in the initial ternary compound. Magnetic measurements data for the Ni3-xFexGaTe2 series show dramatic change in behavior from temperature-independent paramagnetic properties of the initial matrix to a low-temperature (~ 75 K) ferromagnetic ordering in the Ni2FeGaTe2.
- Добавил в систему: Кузнецов Алексей Николаевич