Dielectric relaxation in the DyMn 1-xFe xO 3 system

Fang Hong; Zhenxiang Cheng; Shujun Zhang; Xiaolin Wang

doi:10.1063/1.3681807

Dielectric relaxation in the DyMn _1-xFe _xO ₃ system

Fang Hong, Zhenxiang Cheng, Shujun Zhang, Xiaolin Wang

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The dielectric constant and loss of perovskite DyMn _1-xFe _xO ₃ 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 f ₀ and the activation energy E _α 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 E _α.

Original language	English (US)
Article number	034104
Journal	Journal of Applied Physics
Volume	111
Issue number	3
DOIs	https://doi.org/10.1063/1.3681807
State	Published - Feb 1 2012

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.3681807

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abstract = "The dielectric constant and loss of perovskite DyMn 1-xFe xO 3 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 f 0 and the activation energy E α 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 E α.",

author = "Fang Hong and Zhenxiang Cheng and Shujun Zhang and Xiaolin Wang",

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AU - Cheng, Zhenxiang

AU - Zhang, Shujun

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N2 - The dielectric constant and loss of perovskite DyMn 1-xFe xO 3 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 f 0 and the activation energy E α 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 E α.

AB - The dielectric constant and loss of perovskite DyMn 1-xFe xO 3 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 f 0 and the activation energy E α 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 E α.

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Dielectric relaxation in the DyMn _1-xFe _xO ₃ system

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