caa a22 4500 463221761 CHVBK 20180405153214.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10853-006-1240-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-1240-z Compositional, temperature and frequency dependence of dielectric behaviour of zinc substituted copper- ferri-chromates [Elektronische Daten] [M. Chhantbar, K. Modi, H. Joshi] The comprehensive study on compositional, temperature and frequency dependent dielectric properties of ZnxCu1−xFeCrO4 (x=0.0, 0.2, 0.4 and 0.6 ) was carried out by means of a. c. resistivity (ρac), dielectric constant (ε′) and loss tangent (tanδ) measurements in the frequency range from 100Hz to 1MHz at different temperatures ranging from 40°C to 500°C. An abnormal behaviour of ε′ as a function of temperature is explained on the basis of contribution of two types of charge carriers in the polarization process. It is found that magnetic ordering does not have marked influence on the dielectric properties. The probable conduction mechanism in the present system is due to electron transition such as Fe2+ $$ \leftrightarrows $$ Fe3+ and Cu2+ $$ \leftrightarrows $$ Cu1+ rather than ionization or polaron hopping mechanism. Springer Science+Business Media, LLC, 2007 Chhantbar M. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut Modi K. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut Joshi H. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6989-6995 0022-2461 42:16<6989 2007 42 10853 https://doi.org/10.1007/s10853-006-1240-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1240-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chhantbar M. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut NATIONALLICENCE 700 1- Modi K. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut NATIONALLICENCE 700 1- Joshi H. Department of Physics, Saurashtra University, 360 005, Rajkot, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/16(2007-08-01), 6989-6995 0022-2461 42:16<6989 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer