Dielectric response of spherical particles of graded materials
Soft Condensed Matter
2007-05-23 v4 Materials Science
Biological Physics
Optics
Abstract
We have studied the effective response of composites of spherical particles with a dielectric profile which varies along the radius of the particles. We developed a differential effective dipole theory to compute the dipole moment of individual spherical particle and hence the effective dielectric response of a dilute suspension. The theory has been applied to two model dielectric profiles. Moreover, we compare the approximate results with the exact results of the power-law profile and the agreement is excellent.
Keywords
Cite
@article{arxiv.cond-mat/0211532,
title = {Dielectric response of spherical particles of graded materials},
author = {K. W. Yu and G. Q. Gu and J. P. Huang},
journal= {arXiv preprint arXiv:cond-mat/0211532},
year = {2007}
}
Comments
See cond-mat/0507325: The ad hoc method of the differential effective dipole approximation (DEDA) derived in the previous versions has been shown to be exact from a first-principles approach