...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Conductivity and dielectric behaviour of indium substituted zinc ferrites prepared by coprecipitation method
【24h】

Conductivity and dielectric behaviour of indium substituted zinc ferrites prepared by coprecipitation method

机译：共沉淀法制备铟取代锌铁氧体的电导率和介电性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents the results concerning dielectric behavior and conductivity of the nanosized Zn1-xInxFe2O4 powders (x = 0, 0.15, 0.2, and 0.3), obtained by coprecipitation method. The frequency dependence of dielectric permittivity and conductivity of the samples is determined in the frequency range of 1-10(5) Hz, at temperatures from 300-350 K, while the temperature dependence of conductivity was recorded at 100 Hz, 10 kHz and 100 kHz. The ac conductivity was found to follow universal dielectric response, which is typical for charge transport by hopping or tunneling processes. Analyzing the variation of the parameter n (as a measure of the degree of correlation between conductivity and frequency), with the temperatures we discuss the possible conduction mechanism in investigated samples. Qualitatively, non-overlapping small polarons (NSPT) are usually associated with increase in n with increasing temperature, while correlated barrier hopping (CBH) shows a decrease in n with increasing T.
机译：本文介绍了通过共沉淀法获得的有关纳米尺寸Zn1-xInxFe2O4粉末（x = 0、0.15、0.2和0.3）的介电行为和电导率的结果。在300-350 K的温度下，在1-10（5）Hz的频率范围内确定样品的介电常数和电导率的频率依赖性，而在100 Hz，10 kHz和100时记录电导率的温度依赖性千赫。发现交流电导率遵循通用介电响应，这是通过跳跃或隧穿过程进行电荷传输的典型方法。通过分析温度参数n的变化（作为电导率和频率之间相关程度的量度），我们讨论了温度在所研究样品中的可能传导机理。定性地，非重叠小极化子（NSPT）通常与n随温度升高而增加有关，而相关的势垒跳跃（CBH）显示n随着T的增加而减少。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号