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Influence of Dy on the dielectric aging and thermally stimulated depolarization current in Dy and Mn-codoped BaTiO3 multilayer ceramic capacitor

Published online by Cambridge University Press:  21 November 2013

Seok-Hyun Yoon ,
Jong-Bong Lim ,
Sang-Hyuk Kim  and
Doo-Young Kim
Seok-Hyun Yoon*
Affiliation:
LCR R&D Group, LCR Division, Samsung Electro-Mechanics Co. Ltd., Suwon, Gyunggi-Do 443-743, Korea
Jong-Bong Lim
Affiliation:
LCR R&D Group, LCR Division, Samsung Electro-Mechanics Co. Ltd., Suwon, Gyunggi-Do 443-743, Korea
Sang-Hyuk Kim
Affiliation:
LCR R&D Group, LCR Division, Samsung Electro-Mechanics Co. Ltd., Suwon, Gyunggi-Do 443-743, Korea
Doo-Young Kim
Affiliation:
LCR R&D Group, LCR Division, Samsung Electro-Mechanics Co. Ltd., Suwon, Gyunggi-Do 443-743, Korea
*
a)Address all correspondence to this author. e-mail: seokhyun72.yoon@samsung.com
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Abstract

Dielectric aging of Dy and Mn-codoped BaTiO3 multilayer ceramic capacitors was investigated. The increase of Dy concentration significantly decreased the aging rate and caused a disappearance of the thermally stimulated depolarization current peak associated with the defect dipole of Mn such as ${\rm{Mn}}_{{\rm{Ti}}}^{\prime \prime } {\rm{ - V}}_{\rm{O}}^{\cdot\cdot}$ or ${\rm{Mn}}_{{\rm{Ti}}}^\prime {\rm{ - V}}_{\rm{O}}^{\cdot\cdot}$, which was observed in low Dy-concentration specimens. These results experimentally demonstrate that the rare earth element, Dy, decreases the concentration of the defect dipoles and thereby controls dielectric aging.

Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 23 , 14 December 2013 , pp. 3252 - 3256
Copyright
Copyright © Materials Research Society 2013 

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References

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