Relaxor ferroelectrics are fascinating and useful materials, but they seem to be heterogeneous, hopeless messes. Observing what they do under electric fields reveals critical behaviour that helps to make sense of them.
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Cohen, R. Relaxors go critical. Nature 441, 941–942 (2006). https://doi.org/10.1038/441941a
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DOI: https://doi.org/10.1038/441941a
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