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Electrocalorics hit the top

A first-order ferroelectric phase transition is driven supercritically in multilayer capacitors of PbSc0.5Ta0.5O3, enabling an electrocaloric response of 5.5 K near room temperature.

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Fig. 1: Large EC effects over a wide range of operating temperatures in Sc/Ta-ordered PST MLC.
Fig. 2: Illustration of the ET phase diagram in relaxor ferroelectrics.


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Correspondence to B. Dkhil.

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Otoničar, M., Dkhil, B. Electrocalorics hit the top. Nat. Mater. 19, 9–11 (2020).

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