Title :
Local Field versus Meanfield Theory for Dielectric Spheres
Author :
Kuehn, Markus ; Kliem, Herbert
Author_Institution :
Inst. of Electr. Eng. Phys., Saarland Univ., Saarbruecken, Germany
Abstract :
It is shown that the local electric field in a dielectric sphere of nanometric dimensions is not uniform as expected from macroscopic meanfield theory. A numerical method is presented which allows the microscopic calculation of these local fields. It is shown that for large diameters the microscopic calculations converge towards the macroscopic theory.
Keywords :
dielectric materials; electric fields; dielectric spheres; local electric field; macroscopic meanfield theory; Atomic force microscopy; Dielectric materials; Dielectrics and electrical insulation; Lattices; Material properties; Materials science and technology; Numerical models; Permittivity; Physics; Polarization;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2008. CEIDP 2008. Annual Report Conference on
Conference_Location :
Quebec, QC
Print_ISBN :
978-1-4244-2548-8
Electronic_ISBN :
978-1-4244-2549-5
DOI :
10.1109/CEIDP.2008.4772771
