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. 2022 Feb 21;9:59. doi: 10.1038/s41597-022-01158-z

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© The Author(s) 2022

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Fig. 5 — The calculated patterns of electronic charge density ρ(r) of (a) A₂B₃C₇ type, Ho₂Ti₂O₇ [The right panel reprint with permission from ref. ⁵³. Copyright 2017 Elsevier], (b) ABC₄ type, NaBH₄ [The right panel reprint with permission from ref. ⁵⁰. Copyright 2010 American Physical Society], (c) AB₂C₆ type, CaTa₂O₆ [The right panel reprint with permission from ref. ⁴². Copyright 2019 Elsevier] and (d) ABC₂D₆ type, Cs₂KTbCl₆ [The right panel reprint with permission from ref. ⁴⁷. Copyright 2010 Elsevier], respectively.