Conduction mechanism and magnetic properties of (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 multiferroics

C. M. Kanamadi; G. Seeta Rama Raju; H. K. Yang; B. C. Choi; J. H. Jeong

doi:10.1016/j.jallcom.2009.01.053

Conduction mechanism and magnetic properties of (x)Ni_0.8Cu_0.2Fe₂O₄ + (1 - x)Ba_0.8Pb_0.2Ti_0.8Zr_0.2O₃ multiferroics

C. M. Kanamadi, G. Seeta Rama Raju, H. K. Yang, B. C. Choi, J. H. Jeong

Department of Energy and Materials Engineering

Pukyong National University

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

23 Scopus citations

Abstract

Magnetoelectric composites with composition (x)Ni_0.8Cu_0.2Fe₂O₄ + (1 - x)Ba_0.8Pb_0.2Ti_0.8Zr_0.2O₃ (x = 0, 0.15, 0.30, 0.45 and 1 mol%) were synthesized by solid state reaction method. From the X-ray analysis, it was confirmed that no chemical reaction occurred between the ferrite and ferroelectric materials used to form the diphase composite system. The AC conductivity as a function of frequency and DC resistivity as a function of temperature were studied for different compositions. These materials show semiconductor behaviour and the conduction is due to small polaron hopping. From magnetic hysteresis measurements, the saturation magnetization was found to decrease with increase in ferroelectric content in the composites as the interaction between magnetic grains is weakened by the existence of non-magnetic ferroelectric phase in the composites.

Original language	English
Pages (from-to)	807-811
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	479
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2009.01.053
State	Published - 24 Jun 2009

Keywords

Composite materials
Magnetic measurements
Magnetization
Solid state reaction
X-ray diffraction

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title = "Conduction mechanism and magnetic properties of (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 multiferroics",

abstract = "Magnetoelectric composites with composition (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 (x = 0, 0.15, 0.30, 0.45 and 1 mol%) were synthesized by solid state reaction method. From the X-ray analysis, it was confirmed that no chemical reaction occurred between the ferrite and ferroelectric materials used to form the diphase composite system. The AC conductivity as a function of frequency and DC resistivity as a function of temperature were studied for different compositions. These materials show semiconductor behaviour and the conduction is due to small polaron hopping. From magnetic hysteresis measurements, the saturation magnetization was found to decrease with increase in ferroelectric content in the composites as the interaction between magnetic grains is weakened by the existence of non-magnetic ferroelectric phase in the composites.",

keywords = "Composite materials, Magnetic measurements, Magnetization, Solid state reaction, X-ray diffraction",

author = "Kanamadi, {C. M.} and {Seeta Rama Raju}, G. and Yang, {H. K.} and Choi, {B. C.} and Jeong, {J. H.}",

year = "2009",

month = jun,

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doi = "10.1016/j.jallcom.2009.01.053",

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T1 - Conduction mechanism and magnetic properties of (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 multiferroics

AU - Kanamadi, C. M.

AU - Seeta Rama Raju, G.

AU - Yang, H. K.

AU - Choi, B. C.

AU - Jeong, J. H.

PY - 2009/6/24

Y1 - 2009/6/24

N2 - Magnetoelectric composites with composition (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 (x = 0, 0.15, 0.30, 0.45 and 1 mol%) were synthesized by solid state reaction method. From the X-ray analysis, it was confirmed that no chemical reaction occurred between the ferrite and ferroelectric materials used to form the diphase composite system. The AC conductivity as a function of frequency and DC resistivity as a function of temperature were studied for different compositions. These materials show semiconductor behaviour and the conduction is due to small polaron hopping. From magnetic hysteresis measurements, the saturation magnetization was found to decrease with increase in ferroelectric content in the composites as the interaction between magnetic grains is weakened by the existence of non-magnetic ferroelectric phase in the composites.

AB - Magnetoelectric composites with composition (x)Ni0.8Cu0.2Fe2O4 + (1 - x)Ba0.8Pb0.2Ti0.8Zr0.2O3 (x = 0, 0.15, 0.30, 0.45 and 1 mol%) were synthesized by solid state reaction method. From the X-ray analysis, it was confirmed that no chemical reaction occurred between the ferrite and ferroelectric materials used to form the diphase composite system. The AC conductivity as a function of frequency and DC resistivity as a function of temperature were studied for different compositions. These materials show semiconductor behaviour and the conduction is due to small polaron hopping. From magnetic hysteresis measurements, the saturation magnetization was found to decrease with increase in ferroelectric content in the composites as the interaction between magnetic grains is weakened by the existence of non-magnetic ferroelectric phase in the composites.

KW - Composite materials

KW - Magnetic measurements

KW - Magnetization

KW - Solid state reaction

KW - X-ray diffraction

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ER -

Conduction mechanism and magnetic properties of (x)Ni_0.8Cu_0.2Fe₂O₄ + (1 - x)Ba_0.8Pb_0.2Ti_0.8Zr_0.2O₃ multiferroics

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Keywords

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