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Too cool to work

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Magnetocaloric and electrocaloric effects are driven by doing work, but this work has barely been explored, even though these caloric effects are being exploited in a growing number of prototype cooling devices.

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Figure 1: Recent electrocaloric1 and mechanocaloric2 prototype coolers.
Figure 2: Caloric materials efficiency map.

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Acknowledgements

X.M. is grateful for support from the Royal Society and EPSRC EP/M003752/1. We thank B. Nair for discussions.

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Authors and Affiliations

  1. Emmanuel Defay and Neil D. Mathur are in the Department of Materials Science, Xavier Moya, University of Cambridge, CB3 0FS, UK,

    Xavier Moya, Emmanuel Defay & Neil D. Mathur

  2. and the Luxembourg Institute of Science and Technology (LIST) — Materials Research and Technology Department, Emmanuel Defay is also at CEA, LETI, Minatec Campus, 17 Rue des Martyrs, 38054 Grenoble, France, 41 rue du Brill, L-4422 Belvaux, Luxembourg,

    Emmanuel Defay

  3. Volker Heine is at the Cavendish Laboratory, University of Cambridge, CB3 0HE, UK,

    Volker Heine

Authors
  1. Xavier Moya
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  2. Emmanuel Defay
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  3. Volker Heine
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  4. Neil D. Mathur
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Correspondence to Neil D. Mathur.

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Moya, X., Defay, E., Heine, V. et al. Too cool to work. Nature Phys 11, 202–205 (2015). https://doi.org/10.1038/nphys3271

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