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Dielectric properties of A, B-site Mn-doped LaTiO3+δ

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A-site Mn-doped La1-xMnxTiO3+δ and B-site doped LaMnxTi1-xO3+δ (x = 0.1, 0.2) composites were synthesized by conventional solid-state reaction method. The low-frequency complex dielectric properties of the composites were investigated as functions of temperature (77 K ≤ T ≤ 360 K) and frequency (100 Hz ≤ f ≤ 1 MHz), respectively. The dielectric constants of A-site doped samples are higher than that of B-site doped samples. The loss tangents of the low doped samples are much less than that of the high doped samples. The A-site doped composites exhibit intrinsic dielectric response with a dielectric constant of ~40 in the temperature below 250 K. Interestingly, the dielectric constants of B-site doped composites always increased in the temperature range from 77 to 360 K. And it is clearly observed that extraordinarily low dielectric loss tangents appear in LaMn0.1Ti0.9O3+δ, which are much lower than that of LaMn0.2Ti0.8O3+δ. These changes indicate that the doped content can affect the intrinsic dielectric characteristics significantly.

源语言英语
主期刊名Materials for Modern Technologies IV
编辑Yue Li, Mingmin Du, Rolin Zhang
出版商Trans Tech Publications Ltd
78-84
页数7
ISBN(印刷版)9783035712629
DOI
出版状态已出版 - 2018
活动7th Spring International Conference on Material Sciences and Technology, MST-S 2018 - Guilin, 中国
期限: 23 4月 201825 4月 2018

出版系列

姓名Materials Science Forum
921 MSF
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议7th Spring International Conference on Material Sciences and Technology, MST-S 2018
国家/地区中国
Guilin
时期23/04/1825/04/18

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