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What is Ferroelectricity?

by Prashasti
Tags: ferroelectricity
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Prashasti
#1
Apr8-14, 11:28 AM
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In the word "Ferroelectricity", why has the word "ferro" been used when it has nothing to do with ferrous or iron?
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Enigman
#2
Apr8-14, 03:06 PM
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Ferroelectricity is a property of certain materials that have a spontaneous electric polarization that can be reversed by the application of an external electric field.[1][2] The term is used in analogy to ferromagnetism, in which a material exhibits a permanent magnetic moment. Ferromagnetism was already known when ferroelectricity was discovered in 1920 in Rochelle salt by Valasek.[3] Thus, the prefix ferro, meaning iron, was used to describe the property despite the fact that most ferroelectric materials do not contain iron.
http://en.wikipedia.org/wiki/Ferroelectricity


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