Difference between revisions of "Electrocaloric effect"
From Online Dictionary of Crystallography
Revision as of 09:23, 12 January 2007
Effet électrocalorifique (Fr).
The electrocaloric effect is the converse of the pyroelectric effect: it describes the electrical response of a material to a thermal impetus. For instance, if the material is submitted uniformly to a temperature variation δΘ, an electrical polarisation Pi appears:
Pi = piT δΘ
where piT is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.