Dielectric and electrical properties of 0.5(BiGd0.05Fe0.95O3)-0.5(PbZrO3) composite

• Autorzy: Satpathy S K , Mohanty N K , Behera A K , Behera B.

Identyfikatory

DOI

10.2478/s13536-013-0155-z

• Języki publikacji: EN

Abstrakty

EN

The 0.5(BiGd0.05Fe0.95O3)-0.5(PbZrO3) composite was synthesized by means of a high temperature solid-state reaction technique using high purity ingredients. Preliminary X-ray structural analysis confirms the formation of the composite. The dielectric constant and loss tangent have been studied. The impedance parameters have been measured using an impedance analyzer in a wide range of frequency (102–106 Hz) at different temperatures. The Nyquist plot suggests the contribution of bulk effect only and the bulk resistance decreases with a rise in temperature. Electrical impedance confirms the presence of grain effect and hopping mechanism in the electrical transport of the material. The dc conductivity increases with a rise of temperature. The frequency variation of ac conductivity shows that the compound obeys Jonscher’s universal power law and from Jonscher’s power law fit confirms the Small Polaron (SP) tunneling effect. Temperature dependence of dc and ac conductivity indicates that electrical conduction in the material is a thermally activated process.

Słowa kluczowe

EN

XRD; dielectric constant; impedance; electrical conductivity

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2014
• Tom: Vol. 32, No. 1
• Strony: 59--65
• Opis fizyczny: Bibliogr. 36 poz., wykr., tab.

Twórcy

autor

Satpathy S K

• Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla - 768019, Odish, India

autor

Mohanty N K

• Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla - 768019, Odish, India

autor

Behera A K

• Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla - 768019, Odish, India

autor

Behera B.

• Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla - 768019, Odish, India

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