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arXiv · 2202.03850

Neutron diffraction evidence of the 3-dimensional structure of Ba2MnTeO6 and misidentification of the triangular layers within the face-centred cubic lattice

Otto H. J. Mustonen·Charlotte E. Pughe·Helen C. Walker·Heather M. Mutch·Gavin B. G. Stenning·Fiona C. Coomer·Edmund J. Cussen
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Abstract

Ba2MnTeO6 was first characterised using X-ray diffraction and reported to show a small distortion1 from the idealised cubic perovskite which displays face-centred cubic arrangement of Mn2+. A recent report has asserted that this leads to a layered configuration of Mn2+ that serves as an example of a triangular lattice, i.e. a 2D structure containing discreet layers.2 Here we show how neutron scattering gives great confidence in establishing the crystal structure being an undistorted cubic phase and how this can be mis-assigned as a triangular layered structure. This has profound implications for the understanding of the magnetic properties of the system.

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Otto H. J. Mustonen, Charlotte E. Pughe, Helen C. Walker, Heather M. Mutch, Gavin B. G. Stenning, Fiona C. Coomer, Edmund J. Cussen. 2022-02-08. Neutron diffraction evidence of the 3-dimensional structure of Ba2MnTeO6 and misidentification of the triangular layers within the face-centred cubic lattice. https://arxiv.org/abs/2202.03850

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