Direct and indirect electrocaloric measurements using multilayer capacitors

By S. Kar‐Narayan, N. Mathur. 2009

166 citations recorded by the source corpus.

We report the discovery of serendipitous electrocaloric (EC) effects in commercial multilayer capacitors based on ferroelectric BaTiO3. Direct thermometry records ∼0.5 K changes due to 300 kV cm−1, over a wide range of temperatures near and above room temperature. Similar results are obtained indirectly, via thermodynamic analysis of ferroelectric hysteresis loops. We compare and contrast these two results. Optimized EC multilayer capacitors could find applications in future cooling technologies.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/e6d7513a1213b9399deffa3ac8cb1544ac46f034

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In Electronic, Optical and Magnetic Materials

1. S. Kar‐Narayan
2. N. Mathur

In Materials Chemistry

1. S. Kar‐Narayan
2. N. Mathur

Citations in the corpus

• Caloric materials near ferroic phase transitions. (2014, background): “(at typically (50-150) K GPa -1 ) is consistent with large BC effects.”