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Structure and magnetic properties of double perovskites SrCaLnRuO6 (Ln = La, Pr, Nd)
| Title: | Structure and magnetic properties of double perovskites SrCaLnRuO6 (Ln = La, Pr, Nd) |
| Authors: | Sasaki, Akira Browse this author | | Doi, Yoshihiro Browse this author →KAKEN DB | | Hinatsu, Yukio Browse this author →KAKEN DB |
| Keywords: | Magnetically ordered materials | | X-ray diffraction | | Magnetic measurements | | Heat capacity |
| Issue Date: | 27-May-2009 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Journal of Alloys and Compounds |
| Volume: | 477 |
| Issue: | 1-2 |
| Start Page: | 900 |
| End Page: | 904 |
| Publisher DOI: | 10.1016/j.jallcom.2008.11.041 |
| Abstract: | Double perovskite compounds SrCaLnRuO6 (Ln = La, Pr, Nd) were prepared as a single phase. X-ray diffraction measurements show that Ca2+ and Ln3+ ions are partially disordered at the A site and half of the B site of the perovskite ABO3, and that Ca2+/Ln3+ and Ru5+ ions are regularly ordered at the B site. These compounds should be represented by SrCa_(1-x)Ln_x[Ln_(1-x)Ca_x]RuO6 and x = 0.83-0.93 for Ln = La, Pr, and Nd. Magnetic and specific heat measurements show that any of these compounds orders antiferromagnetically at 10-12 K, which is due to the magnetic interactions between Ru5+ ions. The analysis of the magnetic entropy change indicates that the ground states of Ru5+ and Ln3+ ions are both doublet. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/38693 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 日夏 幸雄
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