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. 2020 Sep 8;11:4492. doi: 10.1038/s41467-020-17951-6

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Li₃N unit cell, showing Li(1) atoms (green spheres), Li(2) atoms (blue spheres) and N (grey spheres); polyhedral representations of Li₃N showing Li(1) atoms and Li(2) atoms: b aligned in the ab direction and c perpendicular to the ab direction; corresponding depictions of d type I and e type II Li₃N nanofibres, based on the orientation of the Li (green) and [Li₂N] layers (blue) with respect to the long axis of the fibre.