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Magnetic properties of Fe2P-type Tb6FeTe2, Tb6CoTe2, Tb6NiTe2 and Er6FeTe2 compoundsстатья
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 июля 2013 г.
- Авторы: Morozkin A.V., Mozharivskyj Y., Svitlyk V., Nirmala R., Nigam A.K.
- Журнал: Journal of Solid State Chemistry
- Том: 183
- Год издания: 2010
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Первая страница: 3039
- Последняя страница: 3051
- DOI: 10.1016/j.jssc.2010.10.023
- Аннотация: The magnetic structure of the Fe2P-type Tb6FeTe2, Er6FeTe2 and Tb6NiTe2 phases (space group P62m) has been investigated through magnetisation measurement and neutron powder diffraction. The Tb6FeTe2 and Tb6NiTe2 phases demonstrate high-temperature ferromagnetic and low-temperature transitions: TC = 160 K and TCN = 36 K for Tb6FeTe2, TC = 228 K, TN = 55 K and TCN = 44 K for Tb6NiTe2, whereas Er6FeTe2 shows antiferromagnetic transition at TN = 18 K, only. Below high-temprature ferromagnetic transitions Tb6FeTe2 and Tb6NiTe2 has the same collinear magnetic structure (P31m magnetic space group, K0 = [0, 0, 0], terbium magnetic moments directed along c axis), whereas below 36 K Tb6FeTe2 adopts a non-collinear ferromagnetic one, between 55 K and 44 K Tb6NiTe2 is ferromagnetic cone with K1 = [0, 0, 3/10] and below 44 K T6NiTe2 became the canted ferromagnetic cone with K1 = [0, 0, 3/10] and K2 = [2/9, 2/9, 0]. Below 18 K the magnetic structure of Er6FeTe2 is the flat spiral with K1 = [0, 0, 1/10] (cone axis coincides with the c axis). The magnetic entropy of Tb6NiTe2 is dSmag = -4.86 J/kgK at 229 K for the field change H = 0-5 T.
- Добавил в систему: Морозкин Александр Владимирович