Structural properties of Pb3Mn7O15 determined from high-resolution synchrotron powder diffraction

Details Structural properties of Pb3Mn7O15 determined from high-resolution synchrotron powder diffraction Structural properties of Pb3Mn7O15 determined from high-resolution synchrotron powder diffraction

2008-10-29

arxiv.org/abs/0810.5296v1

J. Solid State Chem. 182, 1188 (2009)

Physics

Condensed Matter

Materials Science

6 pages, 4 figures, 2 tables

Scientific paper

We report on the crystallographic structure of the layered compound Pb3Mn7O15. Previous analysis based on laboratory X-ray data at room temperature gave contradictory results in terms of the description of the unit cell. Motivated by recent magnetic bulk measurements of this system, we re-investigated the chemical structure with high-resolution synchrotron powder diffraction at temperatures between 15 K and 295 K. Our results show that the crystal structure of stoichiometric Pb3Mn7O15 has a pronounced 2-dimensional character and can be described in the orthorhombic space group Pnma.

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