Negative pressure in ferroelectric nanowires has been achieved by exploiting a phase transformation between crystal structures with differing densities, leading to substantial property enhancement.
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Schlom, D., Fennie, C. The positives of going negative. Nature Mater 14, 969–970 (2015). https://doi.org/10.1038/nmat4391
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DOI: https://doi.org/10.1038/nmat4391
