Impedance spectroscopy study on Mn1+xFe2-2xTixO4 (0≤x≤0.5) ferrites

被引：6

作者：

Kumar, S. ^{[1
]}

Batoo, K. M. ^{[2
]}

Prakash, R. ^{[3
]}

Choi, H. K. ^{[1
]}

Koo, B. H. ^{[1
]}

Song, J., I ^{[3
]}

Chung, H. ^{[4
,5
]}

Jeong, H. ^{[4
,5
]}

Lee, C. G. ^{[1
]}

机构：

[1] Changwon Natl Univ, Sch Nano & Adv Mat Engn, Chang Won 641773, South Korea

[2] King Saud Univ, King Abdullah Inst Nanotechnol, Riyadh 11451, Saudi Arabia

[3] Changwon Natl Univ, Dept Mech Engn, Chang Won 641773, South Korea

[4] Gyeongsang Natl Univ, Dept Precis & Mech Engn, Tongyeong 650160, South Korea

[5] Gyeongsang Natl Univ, Ecofriendly Heat & Cold Energy Mech Res Team BK21, Tongyeong 650160, South Korea

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2010年 / 17卷 / 06期

关键词：

spinel ferrite; magnetic properties; impedance spectroscopy; Ti4+ ions; doping; MOSSBAUER; BEHAVIOR; CONDUCTIVITY; SPECTRA;

D O I：

10.1007/s11771-010-0608-z

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The complex impedance spectroscopy and surface morphology of Mn1+xFe2-2xTixO4 (0 <= x <= 0.5) system, prepared using a conventional solid state reaction technique, were investigated. The impedance spectroscopy measurements were carried out at room temperature in the frequency range of 42-5 MHz. The electrical processes in the samples were modeled in the form of an equivalent circuit made up of a combination of two parallel RC circuits attributed to grain and grain boundaries. The DC conductivity obtained by extrapolation of AC data using impedance spectroscopy and four-probe method increases at 10% doping of Ti ions. The energy-dispersive X-ray (EDX) pattern confirmed the homogeneous mixing of the Mn, Fe, Ti and O atoms in pure and doped ferrite samples.

引用

页码：1133 / 1138

页数：6

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