World Library  
Flag as Inappropriate
Email this Article

Flexoelectricity

Article Id: WHEBN0021728202
Reproduction Date:

Title: Flexoelectricity  
Author: World Heritage Encyclopedia
Language: English
Subject: Piezoelectricity, Ferroelectricity, Ferroelasticity
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Flexoelectricity

Flexoelectricity is a property of a dielectric material whereby it exhibits a spontaneous electrical polarization induced by a strain gradient. It was discovered in 1969 by R.B. Meyer.[1] Flexoelectricity is not the same as Ferroelasticity.

The electric polarization due to mechanical stress in a dielectric is given by:

P_i=d_{ijk}\sigma_{jk}+\mu_{ijkl}\frac{\partial\epsilon_{jk}}{\partial x_l}

where the first term corresponds to the direct piezoelectric effect and the second term corresponds to the flexoelectric polarization induced by the strain gradient.

Here, the flexoelectric coefficient, \mu_{ijkl}, is a fourth-rank polar tensor and d_{ijk} is the coefficient corresponding to the direct piezoelectric effect.

See also

References

External links

  • Introduction to Flexoelectricity
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.