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Jahn-Teller distortion and charge, orbital, and magnetic order in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">NaMn</mml:mi><mml:mn>7</mml:mn></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:math>
With the use of band structure calculations we demonstrate that previously reported [A. Prodi et al., Nat. Mater. 3, 48 (2004)] experimental crystal and magnetic structures for ${\mathrm{NaMn}}_{7}$${\mathrm{O}}_{12}$ are inconsistent with each other. The optimization of the crystal lattice allows us to predict another crystal structure for the low temperature …