MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Observation of Electric Potential Distribution in Model Capacitor Sample Using Electron Holography
Ryuichi KuramaeHiroyuki OnoYoshinori FujikawaYasukazu MurakamiDaisuke Shindo
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2012 Volume 53 Issue 4 Pages 696-699

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Abstract

The electrical potential distribution in a model capacitor specimen, made of single-crystalline BaTiO3 and thin Pt plates, has been revealed by electron holography. In order to represent the inherent potential distribution related to the capacitance, undesired phase information was eliminated by the analysis of electron holograms acquired in various conditions of applied voltage; the undesired information includes signals due to electrical charging, thickness variation, and modulation of the reference electron wave by a long-range electric field. The observation of electric potential showed reasonable agreement with simulation for the model specimen.

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© 2012 The Japan Institute of Metals and Materials
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