| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1329159 | Journal of Solid State Chemistry | 2010 | 5 Pages |
A complete solid solution was found between isostructural Pb3Mn7O15 and Pb3Rh7O15. Single-crystals of two members of the solid solution Pb3Rh7−xMnxO15 (x=1.07 and 2.26) were grown and their crystal structures were determined. The Verwey-type transition for Pb3Rh7O15 at 185 K remains with a 3% substitution of Mn for Rh but disappears with 4% substitution of Mn for Rh. The magnetic ordering temperature found for Pb3Mn7O15 at about 70 K is maintained at a 43% substitution of Rh for Mn but has disappeared for 57% substitution of Rh for Mn. The unit cell volume of this layered structure contracts with increasing x for Pb3Rh7−xMnxO15 phases, but the structure actually expands in the direction perpendicular to the layers due to increased separation between the layers.
Graphical abstractA complete solid solution is formed between isostructural Pb3Mn7O15 and Pb3Rh7O15. The effect of Mn substitution for Rh on the previously discovered Verwey-type transition in Pb3Rh7O15 is described.Figure optionsDownload full-size imageDownload as PowerPoint slide
