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. 2022 Jun 23;13:3599. doi: 10.1038/s41467-022-31159-w

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© The Author(s) 2022

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. 4 — a–c Evidence from electrical resistivity, thermopower and Hall effect measurements for charge localisation and variable-range hopping behaviour in as-cast and furnace-cooled Fe₂VAl at low temperatures. d Temperature-dependent resistivity of Fe₂VAl with increasing quenching temperature. Dashed line denotes the Ioffe-Regel-Mott limit in Fe₂VAl. e Sign reversal of the temperature-dependent thermopower with increasing quenching temperature. Inset shows the slope of S(T) at low temperatures for the different samples. Solid lines are guides to the eye.