Sodium ion transport in polymorphic scandium NASICON analog Na3Sc2(PO4)3 with new dielectric spectroscopy approach for current-constriction effects
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- 作者：Su-Hyun Moon ; Yoon Hwa Kim ; Dong-Chun Cho ; Eui-Chol Shin ; Donghwa Lee ; Won Bin Im ; Jong-Sook Lee ; jongsook@jnu.ac.kr" class="auth_mail" title="E-mail the corresponding author
- 关键词：NASICON ; Na3Sc2(PO4)3 phase transitions ; Universal dispersive response ; Current constriction ; Havriliak&ndash ; Negami dielectric functions ; Dielectric spectroscopy
- 刊名：Solid State Ionics
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：289
- 期：Complete
- 页码：55-71
- 全文大小：3639 K
文摘
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Structural evolution by in-situ XRD and conductivity are directly related.
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β/β″ transition is first time evidenced in Sc NASICON analog.
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Carrier concentration is obtained from universal bulk frequency dispersion.
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Current constriction is described by polarization throughout the sample.
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New spectroscopy is superior to the conventional brick layer modeling.