Studies on the dielectric behavior of Cu-doped NdMnO3

Authors :: M. J. Keshvani
Savan Katba
Ashish Ravalia
D. G. Kuberkar
Malay Udeshi
Nikesh A. Shah
Megha Vagadia
P.S. Solanki
C. M. Thaker
Source :: AIP Conference Proceedings.
Publication Year :: 2014
Publisher :: AIP Publishing LLC, 2014.
Abstract: We report the effect of Cu-doping on the dielectric behavior of NdMn1−xCuxO3 (NMCO); x = 0.0 – 0.05, manganites. It is observed that, dielectric constant (e′) decreases with Cu (x) concentration which has been understood on the basis of modifications in grain morphology and double exchange (DE) interaction between Mn3+ and Mn4+. Also, effect of grain boundary (GB) density on the dielectric response is studied using cole-cole plots.