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Novel germanide Ce2RuGe: Synthesis, crystal structure and low temperature physical properties Dстатья
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: 15 августа 2019 г.
- Авторы: Kaczorowski D., Murashova E., Kurenbaeva Zh, Gribanov A.
- Журнал: Journal of Alloys and Compounds
- Том: 802
- Год издания: 2019
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 437
- Последняя страница: 444
- DOI: 10.1016/j.jallcom.2019.06.214
- Аннотация: Novel ternary intermetallic phase Ce2RuGe was synthesized via arc-melting of the constituents and subsequent annealing at 700 С. Its crystal structure was determined from the powder X-ray diffraction data collected at room temperature. The compound crystallizes in the orthorhombic structure of a new type: space group Pmmn (No. 59), lattice parameters: a = 4.38235(5) Å, b = 4.31818(5) Å, c = 9.91496(15)Å, Z = 2, Pearson symbol oP8. In the fully ordered unit cell of Ce2RuGe, there are two crystallographic positions for Ce atoms, single site with Ru atoms, and single site with Ge atoms, each with the multiplicity of two. The crystal structure is built of infinite zigzag-like chains of the Ru and Ge atoms, propagating along the [010] direction. The essential feature is a very short interatomic distance between the Ce1 atoms and the Ru atoms being equal to 2.226(2) Å, while the Ce2eRu distance is of regular length. This structural property gives rise to distinctive physical behavior of the compound that exhibits the coexistence of valence fluctuations associated with unstable 4f shell of the Ce1 ions and a long-range magnetic ordering that emerges in the Ce2 ions sublattice. As revealed by means of magnetization, heat capacity and electrical resistivity measurements, Ce2RuGe orders antiferromagnetically at TN = 12.0(1) K, and becomes ferromagnetic below TC = 8.5(3) K. ©
- Добавил в систему: Мурашова Елена Викторовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | 1-s2.0-S0925838819322984-main_kVb2c0Q.pdf | 1-s2.0-S0925838819322984-main_kVb2c0Q.pdf | 2,1 МБ | 5 августа 2019 [Elena_Murashova] | |
| 2. | 1-s2.0-S0925838819322984-main.pdf | 1-s2.0-S0925838819322984-main.pdf | 2,1 МБ | 5 августа 2019 [Elena_Murashova] |