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Title: Intrinsic magnetic, structural and resistivity properties of ferromagnetic Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} nanoparticles

Abstract

Highlights: ► Al{sup 3+} ion substituted Mn–Zn ferrite nanoparticles. ► Single phase cubic spinel structure changes with Al{sup 3+} substitution. ► Magnetization and coercivity decreased with increasing Al{sup 3+}. ► Resistivity increased with Al{sup 3+} substitution. - Abstract: In this work the nano-structural, magnetic and resistivity properties of Al{sup 3+} substituted Mn–Zn ferrites powders were investigated. Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} powders, where x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 were obtained by the sol–gel auto-combustion method. X-ray diffraction data indicate that, after substitution, all the samples consisted of the main spinel phase in combination with a small amount of a foreign Al{sub 2}O{sub 3} phase. The addition of Al{sup 3+} resulted in a reduction of particle size and density of the prepared samples. Cation distribution in the present study was estimated by using X-ray diffraction data. The tetrahedral site radii initially increased with Al{sup 3+} content while the octahedral site radii decreased with the Al{sup 3+} substitution. FTIR spectra show two strong absorption bands at 529–548 cm{sup −1} and 445–452 cm{sup −1} which are the typical bands for the cubic spinel crystal structure. The magnetic properties were measured by employing a vibrating sample magnetometer. It wasmore » observed that the saturation magnetization, coercivity and anisotropy field decreased with the increase of Al{sup 3+} substitution. Introduction of Al{sup 3+} ions into the Mn–Zn ferrite increased the values of the resistivity, especially in the lower temperature range.« less

Authors:
 [1];  [2];  [3];  [4];  [2];  [5]
  1. Department of Physics, Kulswamini College, Tuljapur, Osmanabad, MS (India)
  2. Materials Research Laboratory, Srikrishna Mahavidyalaya Gunjoti, Omerga, Osmanabad 413613, MS (India)
  3. Department of Physics, Yashwantrao Chavan Mahavidyalaya, Tuljapur, Osmanabad, MS (India)
  4. Department of Physics, S.G.R.G. Shinde Mahavidyalaya, Paranda 413502, MS (India)
  5. Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS (India)
Publication Date:
OSTI Identifier:
22290396
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 48; Journal Issue: 3; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM IONS; ALUMINIUM OXIDES; CATIONS; COERCIVE FORCE; CRYSTAL STRUCTURE; FERRITE; FERRITES; INFRARED SPECTRA; MAGNETIC PROPERTIES; NANOSTRUCTURES; PARTICLE SIZE; PARTICLES; SPINELS; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION

Citation Formats

Haralkar, S. J., Kadam, R. H., More, S. S., Shirsath, Sagar E., E-mail: shirsathsagar@hotmail.com, Mane, M. L., Patil, Swati, and Mane, D. R. Intrinsic magnetic, structural and resistivity properties of ferromagnetic Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} nanoparticles. United States: N. p., 2013. Web. doi:10.1016/J.MATERRESBULL.2012.12.018.
Haralkar, S. J., Kadam, R. H., More, S. S., Shirsath, Sagar E., E-mail: shirsathsagar@hotmail.com, Mane, M. L., Patil, Swati, & Mane, D. R. Intrinsic magnetic, structural and resistivity properties of ferromagnetic Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} nanoparticles. United States. doi:10.1016/J.MATERRESBULL.2012.12.018.
Haralkar, S. J., Kadam, R. H., More, S. S., Shirsath, Sagar E., E-mail: shirsathsagar@hotmail.com, Mane, M. L., Patil, Swati, and Mane, D. R. Fri . "Intrinsic magnetic, structural and resistivity properties of ferromagnetic Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} nanoparticles". United States. doi:10.1016/J.MATERRESBULL.2012.12.018.
@article{osti_22290396,
title = {Intrinsic magnetic, structural and resistivity properties of ferromagnetic Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} nanoparticles},
author = {Haralkar, S. J. and Kadam, R. H. and More, S. S. and Shirsath, Sagar E., E-mail: shirsathsagar@hotmail.com and Mane, M. L. and Patil, Swati and Mane, D. R.},
abstractNote = {Highlights: ► Al{sup 3+} ion substituted Mn–Zn ferrite nanoparticles. ► Single phase cubic spinel structure changes with Al{sup 3+} substitution. ► Magnetization and coercivity decreased with increasing Al{sup 3+}. ► Resistivity increased with Al{sup 3+} substitution. - Abstract: In this work the nano-structural, magnetic and resistivity properties of Al{sup 3+} substituted Mn–Zn ferrites powders were investigated. Mn{sub 0.5}Zn{sub 0.5}Al{sub x}Fe{sub 2−x}O{sub 4} powders, where x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 were obtained by the sol–gel auto-combustion method. X-ray diffraction data indicate that, after substitution, all the samples consisted of the main spinel phase in combination with a small amount of a foreign Al{sub 2}O{sub 3} phase. The addition of Al{sup 3+} resulted in a reduction of particle size and density of the prepared samples. Cation distribution in the present study was estimated by using X-ray diffraction data. The tetrahedral site radii initially increased with Al{sup 3+} content while the octahedral site radii decreased with the Al{sup 3+} substitution. FTIR spectra show two strong absorption bands at 529–548 cm{sup −1} and 445–452 cm{sup −1} which are the typical bands for the cubic spinel crystal structure. The magnetic properties were measured by employing a vibrating sample magnetometer. It was observed that the saturation magnetization, coercivity and anisotropy field decreased with the increase of Al{sup 3+} substitution. Introduction of Al{sup 3+} ions into the Mn–Zn ferrite increased the values of the resistivity, especially in the lower temperature range.},
doi = {10.1016/J.MATERRESBULL.2012.12.018},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 3,
volume = 48,
place = {United States},
year = {2013},
month = {3}
}