Possible incipient ferroelectricity in Mn-doped Na1/2Bi1/2Cu3Ti4O12

被引：17

作者：

Ferrarelli, Matthew C. ^{[1
]}

Sinclair, Derek C. ^{[1
]}

West, Anthony R. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 21期

基金：

英国工程与自然科学研究理事会;

关键词：

bismuth compounds; copper compounds; ferroelectric ceramics; manganese; permittivity; semiconductor doping; semiconductor materials; sodium compounds; SRTIO3;

D O I：

10.1063/1.3134488

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The grain semiconductivity of Na1/2Bi1/2Cu3Ti4O12 ceramics is suppressed by several orders of magnitude by Mn-doping and Na1/2Bi1/2Cu2.82Mn0.18Ti4O12 ceramics exhibit high room temperature relative permittivity, epsilon(r), similar to 140. epsilon(r) data at 100 kHz fit the Barrett equation over the range similar to 10-320 K and the magnitude and temperature dependence of epsilon(r) are consistent with incipient ferroelectricity in this compound.

引用

页数：3

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