Record Details

<strong>Dielectric properties of spinel Co3-xMnxO4 (x = 0.1, 0.4, 0.7, and 1.0) ceramic compositions</strong>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <strong>Dielectric properties of spinel Co3-xMnxO4 (x = 0.1, 0.4, 0.7, and 1.0) ceramic compositions</strong>
 
Added Entry - Uncontrolled Name MEENA, P L; Deen Dayal Upadhyaya College (Unversity of Delhi)
 
Uncontrolled Index Term Dielectric properties; Ceramic; Jonscher’s range
 
Summary, etc. <strong>Cobalt manganese oxides Co<sub>3</sub><sub>-x</sub>Mn<sub>x</sub>O<sub>4 </sub>(<em>x</em> = 0.1, 0.4, 0.7, and 1.0) multi-ferroic ceramic were prepared by conventional solid state technique to understand the effect of Mn substitution at Co site on the structural and dielectric properties. Single phase polycrystalline with a linear increase in the lattice parameter ‘<em>a</em>’ was observed without any structural change in cubic crystal symmetry with Mn substitution. The effect of Mn substitution on the dielectric constant (ε') and loss tangent (tan<img src="http://nopr.niscair.res.in/image/spc_char/delta1.gif" border="0" alt="" />) was measured over a wide temperature range (150-450 K) and frequency range (100-900 kHz). A very weak frequency dispersion and small temperature dependence was observed in ε' and tan<img src="http://nopr.niscair.res.in/image/spc_char/delta1.gif" border="0" alt="" /> at low temperature, however, ε' and tan<img src="http://nopr.niscair.res.in/image/spc_char/delta1.gif" border="0" alt="" /> display a strong frequency and temperature dependency at higher temperature. The ε' shows a ferroelectric like transition and shift to lower temperature with Mn incorporation. The behaviour of tan<img src="http://nopr.niscair.res.in/image/spc_char/delta1.gif" border="0" alt="" /> shows dielectric relaxation and also shifts towards lower temperature with Mn incorporation. The ceramic compositions show universal dielectric response with temperature dependent exponent factor‘s’ and which fall in Jonscher’s range.</strong>
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2015-06-18 11:01:21
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJPAP/article/view/5939
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 52, ##issue.no## 9 (2014): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.