# Difference between revisions of "Electrocaloric effect"

### From Online Dictionary of Crystallography

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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 also == | == See also == | ||

− | + | *[[pyroelectricity]] | |

− | [http://www.iucr.org/iucr-top/comm/cteach/pamphlets/18/ An introduction to crystal physics] (Teaching Pamphlet of the ''International Union of Crystallography'')<br> | + | *[http://www.iucr.org/iucr-top/comm/cteach/pamphlets/18/ An introduction to crystal physics] (Teaching Pamphlet of the ''International Union of Crystallography'')<br> |

− | + | *Section 1.1.4 and part 3 of ''International Tables of Crystallography, Volume D'' | |

− | Section 1.1.4 and part 3 of ''International Tables of Crystallography, Volume D'' | ||

[[Category:Physical properties of crystals]]<br> | [[Category:Physical properties of crystals]]<br> |

## Revision as of 15:37, 10 April 2017

Effet électrocalorique (*Fr*). Effetto electrocalorico (*It*).

## Definition

The electrocaloric effect is the converse of the pyroelectric effect: it describes the variation of entropy δσ of a material submitted to an applied electrical field *E _{i} *:

*δσ* = *p _{i}^{T}*

*E*

_{i}where *p _{i}^{T}* is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.

## See also

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