Electrocaloric effect

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where ''p<sub>i</sub><sup>T</sup>'' is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.
where ''p<sub>i</sub><sup>T</sup>'' is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.
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== See [[pyroelectricity]] ==
== See also ==
== See also ==

Revision as of 09:32, 12 January 2007

Effet électrocalorifique (Fr).

Definition

The electrocaloric effect is the converse of the pyroelectric effect: it describes the variation of entropy δσ of a material submitted to an electrical field Ei :

δσ = piT Ei

where piT is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.

See pyroelectricity

See also

An introduction to crystal physics (Teaching Pamphlet of the International Union of Crystallography)
Section 10.2 of International Tables of Crystallography, Volume A
Section 1.1.4 and part 3 of International Tables of Crystallography, Volume D