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Incommensurate atomic and magnetic modulations in the spin-frustrated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mrow><mml:mi>β</mml:mi><mml:mtext>−</mml:mtext><mml:mi>NaMn</mml:mi></mml:mrow><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> triangular lattice
The layered $\ensuremath{\beta}\text{\ensuremath{-}}\mathrm{NaMn}{\mathrm{O}}_{2}$, a promising Na-ion energy-storage material, has been investigated for its triangular lattice capability to promote complex magnetic configurations that may release symmetry restrictions for the coexistence of ferroelectric and magnetic orders. The complexity of the neutron powder diffraction patterns underlines that the routinely adopted commensurate structural models …