P. B. Shetty, K. I. Maddani, K. S. Mahalaxmi, Ch Sanyasa Lakshmi
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引用次数: 0
Abstract
La-doped Ni-based ferrites (NiFe2O4) exhibit a single-phased cubic spinel structure. ε′ exhibits a quick decline in the low-frequency regime (upto 100 KHz) and a sluggish reduction in the high-frequency range (> 100 KHZ). Tanẟ values are found to be of the order of 10-2 . Variation in Tanẟ and ac values in D relates to conductivity. Cole-Cole plots portray a single semicircle. This points towards the contribution of resistance induced by grain boundaries. The variations in resistance, capacitance, and relaxation time obtained from Z′ vs. Z″ (Cole Cole graph) plots are due to the hopping mechanism.
掺 La 的镍基铁氧体（NiFe2O4）呈现单相立方尖晶石结构。ε′在低频范围（100 KHz 以下）迅速下降，在高频范围（> 100 KHZ）缓慢下降。Tanẟ 值为 10-2 量级。Tanẟ 和 D 中 ac 值的变化与电导率有关。科尔-科尔曲线图描绘了一个半圆。这表明晶界产生了电阻。从 Z′ vs. Z″（科尔-科尔图）图中得到的电阻、电容和弛豫时间的变化是由于跳变机制造成的。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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