Dielectric relaxation in the DyMn1-xFe xO3 system

Authors

Fang Hong, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
Shujun Zhang, Pennsylvania State University
Xiaolin Wang, University of WollongongFollow

RIS ID

52456

Publication Details

Hong, F., Cheng, Z., Zhang, S. & Wang, X. (2012). Dielectric relaxation in the DyMn1-xFe xO3 system. Journal of Applied Physics, 111 (3), 034104-1-034104-4.

Abstract

The dielectric constant and loss of perovskite DyMn1xFexO3 samples show strong dispersion in various frequencies, which is indicative of relaxation. The activation energies were obtained through Arrhenius law fitting and range from 0.213 eV to 0.385 eV. The Fe content dependence of the characteristic frequency f0 and the activation energy Ea shows two transitions that are well consistent with the change in orbital ordering. Meanwhile, different magnetic orderings could affect the relaxation and induce the change in Ea