| Автор | Sánchez-Benítez, J |
| Автор | Alonso, J A |
| Автор | Falcón, H |
| Автор | Martínez-Lope, M J |
| Автор | De Andrés, A |
| Автор | Fernández-Díaz, M T |
| Дата выпуска | 2005-10-12 |
| dc.description | We report on the study of some new derivatives of the complex perovskite CaCu<sub>3</sub>Mn<sub>4</sub>O<sub>12</sub>. Ca<sup>2+</sup> cations can be replaced by rare earths in the RCu<sub>3</sub>Mn<sub>4</sub>O<sub>12</sub> (R = rare earths) family, implying an electron doping effect that dramatically affects the magnetic properties. These compounds must be prepared under high pressure conditions. We have synthesized for the first time, at 2 GPa in a piston–cylinder press, some new members of the family, with R = Pr, Sm, Eu, Gd, Dy, Ho, Tm and Yb, for which we describe structural and magnetization data. The materials with non-absorbing rare earths have been studied by means of neutron powder diffraction, allowing us to determine the subtle structural features which are related to the observed physical properties. In fact, for most of the R cations, the ferromagnetic T<sub>C</sub> increases remarkably up to 400 K. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Preparation under high pressures and neutron diffraction study of new ferromagnetic RCu<sub>3</sub>Mn<sub>4</sub>O<sub>12</sub> (R = Pr, Sm, Eu, Gd, Dy, Ho, Tm, Yb) perovskites |
| Тип | paper |
| DOI | 10.1088/0953-8984/17/40/009 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 17 |
| Первая страница | S3063 |
| Последняя страница | S3068 |
| Аффилиация | Sánchez-Benítez, J; Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain |
| Аффилиация | Alonso, J A; Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain |
| Аффилиация | Falcón, H; Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain |
| Аффилиация | Martínez-Lope, M J; Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain |
| Аффилиация | De Andrés, A; Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain |
| Аффилиация | Fernández-Díaz, M T; Institut Laue-Langevin, BP156X, Grenoble, F-38042, France |
| Выпуск | 40 |
