Studies on structural, dielectric, and transport properties of Ni{sub 0.65}Zn{sub 0.35}Fe{sub 2}O{sub 4}

Journal Article · Sat Jun 28 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4885420· OSTI ID:22304492

Pradhan, Dhiren K.; Misra, Pankaj; Sahoo, Satyaprakash; Puli, Venkata S. ^[1]; Pradhan, Dillip K. ^[2]

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1. Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118 (United States)
2. Department of Physics, National Institute of Technology, Rourkela 769008 (India)

We report the crystal structure, dielectric, transport, and magnetic properties of Ni{sub 0.65}Zn{sub 0.35}Fe{sub 2}O{sub 4}. Rietveld refinement results of X-ray diffraction patterns confirm the phase formation of the material with cubic crystal structure (Fd3{sup ¯}m). The frequency dependent ac conductivity behavior obeys the Jonscher's power law and is explained using the jump relaxation model. The observed behavior of temperature dependent bulk conductivity is attributed to the variable-range hopping of localized polarons. The correlation of polaron conduction and high permittivity behavior of NZFO is established on the basis of long range and short range conduction mechanisms. The complex impedance spectra clearly show the contribution of both grain and grain boundary effect on the electrical properties.

• OSTI ID: 22304492
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATIONS
CRYSTAL STRUCTURE
CUBIC LATTICES
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
FERRITES
FREQUENCY DEPENDENCE
GRAIN BOUNDARIES
IMPEDANCE
MAGNETIC PROPERTIES
NICKEL COMPOUNDS
PERMITTIVITY
RELAXATION
SPECTRA
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
ZINC COMPOUNDS