| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1592606 | Solid State Communications | 2013 | 5 Pages |
A new inverse spinel ScMn2O4 has been synthesized and characterized by measurements of structural and physical properties. The crystal structure of ScMn2O4, similar with the spinel Mn3O4, is made up of Mn2+ located at tetrahedral site and Mn3+/Sc3+ ions randomly located at the octahedral site. Experimental results of magnetic susceptibility and heat capacity demonstrate that ScMn2O4 undergoes a ferrimagnetic phase transition at the temperature of about 58 K. Extensive analyses on the data obtained from structural refinement, electronic structural calculation and EELS spectra measurement suggests that substitution of Sc for Mn in MnO6 octahedron could greatly suppress Jahn–Teller distortions in comparison with what observed in Mn3O4.
► Spinel ScMn2O4 with a tetragonal structure of space group I41/amd was synthesized. ► Structure parameters are given by the Rietveld method analysis of XRD data. ► A ferrimagnetic phase transition at around Tc=58 K has been observed. ► Electronic structure investigation shows a weaker Jahn–Teller distortion than Mn3O4.
