KnE Material Sciences

ISSN: 2519-1438

The latest conference proceedings on physical materials, energy materials, electrical materials.

Dielectric Permittivity Enhancement By Charged Domain Walls Formation In Stoichiometric Lithium Niobate

Published date:Oct 12 2016

Journal Title: KnE Material Sciences

Issue title: IV Sino-Russian ASRTU Symposium on Advanced Materials and Processing Technology (ASRTU)

Pages:57-63

DOI: 10.18502/kms.v1i1.563

Authors:
Abstract:

We present an experimental study of contribution of charged domain walls into dielectric permittivity of lithium niobate. It has been shown that formation of dense structure with spike-like domains leads to order of magnitude increase of permittivity, which gradually decreases with time. The decrease rate accelerates under DC bias. Dielectric permittivity decreases linearly with a logarithm of frequency. The obtained results were explained considering vibration of the steps on the charged domain walls.

References:

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