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arXiv · 0810.5296

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

J. C. E. Rasch·D. V. Sheptyakov·J. Schefer·L. Keller·M. Böhm·F. Gozzo·N. V. Volkov·K. A. Sablina·G. A. Petrakovskii·H. Grimmer·K. Conder·J. F. Löffler
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Abstract

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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J. C. E. Rasch, D. V. Sheptyakov, J. Schefer, L. Keller, M. Böhm, F. Gozzo, N. V. Volkov, K. A. Sablina, G. A. Petrakovskii, H. Grimmer, K. Conder, J. F. Löffler. 2008-10-29. Structural properties of Pb3Mn7O15 determined from high-resolution synchrotron powder diffraction. https://doi.org/10.1016/j.jssc.2009.02.001

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