2024-03-28T16:56:13Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/389012022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Magnetic properties of EuLn2O4 (Ln = rare earths)Hirose, Keiichi1000020359483Doi, Yoshihiro1000070271707Hinatsu, Yukioopen accessMagnetic propertiesRare earthsOxidesAntiferromagnetic interactionsMagnetic susceptibilityMössbauer spectroscopy431Ternary rare earth oxides EuLn2O4 (Ln = Gd, Dy-Lu) were prepared. They crystallized in an orthorhombic CaFe2O4-type structure with space group Pnma. 151Eu Mössbauer spectroscopic measurements show that the Eu ions are in the divalent state. All these compounds show an antiferromagnetic transition at 4.2-6.3K. From the positive Weiss constant and the saturation of magnetization for EuLu2O4, it is considered that ferromagnetic chains of Eu2+ are aligned along the b-axis of the orthorhombic unit cell, with neighboring Eu2+ chains antiparallel. When Ln = Gd-Tm, ferromagnetically aligned Eu2+ ions interact with the Ln3+ ions, which would overcome the magnetic frustration of triangularly aligned Ln3+ ions and the EuLn2O4 compounds show a simple antiferromagnetic behavior.Elsevier Inc.2009-07engjournal articleAMhttp://hdl.handle.net/2115/38901https://doi.org/10.1016/j.jssc.2009.04.0010022-4596Journal of Solid State Chemistry182716241630https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/38901/1/182-7_p1624-1630.pdfapplication/pdf780.5 KB2009-07