Influence of Cr3+ ion on the structural, ac conductivity and magnetic properties of nanocrystalline Ni-Mg ferrite

被引：63

作者：

Hashim, Mohd ^{[1
]}

Alimuddin ^{[1
]}

Kumar, Shalendra ^{[2
]}

Shirsath, Sagar E. ^{[3
]}

Kotnala, R. K. ^{[4
]}

Shah, Jyoti ^{[4
]}

Kumar, Ravi ^{[5
]}

机构：

[1] Aligarh Muslim Univ, Deptartment Appl Phys, Aligarh 202002, Uttar Pradesh, India

[2] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[3] Shinshu Univ, Spin Device Technol Ctr, Fac Engn, Nagano 3808553, Japan

[4] Natl Phys Lab CSIR, New Delhi 110012, India

[5] Natl Inst Technol, Ctr Mat Sci Engn, Hamirpur 177005, Himachal Prades, India

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 02期

关键词：

Dielectric properties; Magnetic properties; Ferrite nanoparticels; FT-IR; DIELECTRIC-PROPERTIES; TEMPERATURE SYNTHESIS; PARTICLES;

D O I：

10.1016/j.ceramint.2012.08.028

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanocrystalline samples of the Ni-Mg ferrite with the general chemical formula Ni0.5Mg0.5CrxFe2-xO4 (0 <= x <= 1.0, in the step of 0.2) have been synthesized by the citrate-gel auto combustion route. The synthesized samples were characterized by means of XRD, EDAX, FT-IR, UV-visible, dielectric, ac impedance spectroscopy, and AFM, SEM, TEM and FC/ZFC measurements. X-ray powder diffraction of all the samples were carried out at room temperature to check the formation of the required products and structural related properties. The elemental analysis as obtained from the EDAX measurement is in close agreement with the expected composition from the stoichiometry of the reactant solutions. IR studies confirm two main absorption bands in the frequency range of 400-800 cm(-1), arising due to the tetrahedral (A) and octahedral [B] stretching vibrations. Impedance spectroscopy techniques have been used to study the effect of grain and grain boundary on the electrical properties of the prepared samples. The samples were zero field cooled (ZFC) to 100 K. Typical blocking temperature effects were observed below the temperature of about 129 K. The obtained results have been discussed so as to bring out the role of chromium substitution on the structural, dielectric and magnetic properties of Ni-Mg ferrites. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1807 / 1819

页数：13

共 27 条

[1] Magnetization and Mossbauer study of cobalt ferrite particles from nanophase cobalt iron carbonate [J].

Ahn, Y ;

Choi, EJ ;

Kim, S ;

Ok, HN .

MATERIALS LETTERS, 2001, 50 (01) :47-52

[2] Chemical synthesis, structural and magnetic properties of nano-structured Co-Zn-Fe-Cr ferrite [J].

Alone, S. T. ;

Shirsath, Sagar E. ;

Kadam, R. H. ;

Jadhav, K. M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (16) :5055-5060

[3]

Barsoukov E, 2005, IMPEDANCE SPECTROSCOPY: THEORY, EXPERIMENT, AND APPLICATIONS, 2ND EDITION, pXII

[4] Mixed spinel structure in nanocrystalline NiFe2O4 -: art. no. 184108 [J].

Chinnasamy, CN ;

Narayanasamy, A ;

Ponpandian, N ;

Chattopadhyay, K ;

Shinoda, K ;

Jeyadevan, B ;

Tohji, K ;

Nakatsuka, K ;

Furubayashi, T ;

Nakatani, I .

PHYSICAL REVIEW B, 2001, 63 (18)

[5]

Cullity B.D., 1956, Elements of X- ray Diffraction, P99

[6] VEGARD LAW [J].

DENTON, AR ;

ASHCROFT, NW .

PHYSICAL REVIEW A, 1991, 43 (06) :3161-3164

[7] AC conductivity and dielectric properties of, Zn1-xCuxCr0.8Fe1.2O4 spinel ferrites [J].

Elkestawy, M. A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 492 (1-2) :616-620

[8] Low-temperature synthesis of nanocrystalline NiCuZn ferrite and the effect of Cr substitution on its electrical properties [J].

Gabal, M. A. ;

Al Angari, Y. M. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (20) :3159-3165

[9]

Goldman A., 2006, MODERN FERRITE TECHN

[10] Structural, magnetic and electrical properties of Al3+ substituted Ni-Zn ferrite nanoparticles [J].

Hashim, Mohd. ;

Alimuddin ;

Kumar, Shalendra ;

Ali, Sikander ;

Koo, B. H. ;

Chung, H. ;

Kumar, Ravi .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 511 (01) :107-114

← 1 2 3 →