skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of rare earth ion (Y{sup 3+}) on the magnetic and dc electrical properties of high density nanocrystalline Mg-Cd ferrites

Abstract

Graphical abstract: Display Omitted Highlights: ► XRD confirm biphasic nature. ► Grain and crystallite are reduced as compared to ceramic method. ► The resistivity and magnetization increases with Y{sup 3+} addition in Mg-Cd ferrites. ► Coercivity and saturation magnetization shows size dependent behavior. -- Abstract: The samples having general formula Mg{sub 1−x}Cd{sub x}Fe{sub 2}O{sub 4} (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) with 5% Y{sup 3+} addition were prepared by oxalate co-precipitation technique. The characterization was carried by XRD, SEM and FTIR techniques. The XRD confirms the cubic spinel structure with orthoferrite (YFe{sub 2}O{sub 3}) secondary phase. Average crystallite size and grain size lies in the range (28.86–32.66 nm and 0.37–0.69 μm). The grain size is calculated by linear intercept method and lies in the range of 0.37–0.69 μm. The FT-IR shows two absorption bands in the frequency range of 350–800 cm{sup −1}. The addition of Y{sup 3+} for Fe{sup 3+} forms a secondary phase on the grain boundaries and increases the saturation magnetization with respect to that of pure Mg-Cd ferrites. The saturation magnetization, magnetic moment and coercive field is found to increase with cadmium content up to x = 0.4, obeying Neel's two sublattice model andmore » decrease thereafter showing existence of non-collinear spin interaction. The saturation magnetization and coercivity shows size dependent behavior. Y–K type ordering is present in all samples except x = 1. The DC electrical resistivity increases while the Curie temperature (T{sub c}) decreases, with increase in cadmium content. The DC resistivity of Y{sup 3+} added Mg-Cd ferrite is higher than that reported for pure samples and for ceramic method. Activation energy in paramagnetic region is higher than that in ferromagnetic region.« less

Authors:
 [1];  [2]
  1. Department of Physics, KRP Kanya Mahavidylaya, Islampur 415409 (India)
  2. Department of Electronics, Shivaji University, Kolhapur 416 004 (India)
Publication Date:
OSTI Identifier:
22215816
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 48; Journal Issue: 2; 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; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; CERAMICS; CRYSTALS; ELECTRIC CONDUCTIVITY; FERRITE; FERRITES; FOURIER TRANSFORMATION; GRAIN SIZE; INFRARED SPECTRA; INTERACTIONS; IRON IONS; MAGNETIC PROPERTIES; MAGNETIZATION; NANOSTRUCTURES; RARE EARTHS; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; X-RAY DIFFRACTION; YTTRIUM IONS

Citation Formats

Gadkari, Ashok B., E-mail: ashokgadkari88@yahoo.com, Shinde, Tukaram J., and Vasambekar, Promod N. Influence of rare earth ion (Y{sup 3+}) on the magnetic and dc electrical properties of high density nanocrystalline Mg-Cd ferrites. United States: N. p., 2013. Web. doi:10.1016/J.MATERRESBULL.2012.11.009.
Gadkari, Ashok B., E-mail: ashokgadkari88@yahoo.com, Shinde, Tukaram J., & Vasambekar, Promod N. Influence of rare earth ion (Y{sup 3+}) on the magnetic and dc electrical properties of high density nanocrystalline Mg-Cd ferrites. United States. doi:10.1016/J.MATERRESBULL.2012.11.009.
Gadkari, Ashok B., E-mail: ashokgadkari88@yahoo.com, Shinde, Tukaram J., and Vasambekar, Promod N. Fri . "Influence of rare earth ion (Y{sup 3+}) on the magnetic and dc electrical properties of high density nanocrystalline Mg-Cd ferrites". United States. doi:10.1016/J.MATERRESBULL.2012.11.009.
@article{osti_22215816,
title = {Influence of rare earth ion (Y{sup 3+}) on the magnetic and dc electrical properties of high density nanocrystalline Mg-Cd ferrites},
author = {Gadkari, Ashok B., E-mail: ashokgadkari88@yahoo.com and Shinde, Tukaram J. and Vasambekar, Promod N.},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► XRD confirm biphasic nature. ► Grain and crystallite are reduced as compared to ceramic method. ► The resistivity and magnetization increases with Y{sup 3+} addition in Mg-Cd ferrites. ► Coercivity and saturation magnetization shows size dependent behavior. -- Abstract: The samples having general formula Mg{sub 1−x}Cd{sub x}Fe{sub 2}O{sub 4} (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) with 5% Y{sup 3+} addition were prepared by oxalate co-precipitation technique. The characterization was carried by XRD, SEM and FTIR techniques. The XRD confirms the cubic spinel structure with orthoferrite (YFe{sub 2}O{sub 3}) secondary phase. Average crystallite size and grain size lies in the range (28.86–32.66 nm and 0.37–0.69 μm). The grain size is calculated by linear intercept method and lies in the range of 0.37–0.69 μm. The FT-IR shows two absorption bands in the frequency range of 350–800 cm{sup −1}. The addition of Y{sup 3+} for Fe{sup 3+} forms a secondary phase on the grain boundaries and increases the saturation magnetization with respect to that of pure Mg-Cd ferrites. The saturation magnetization, magnetic moment and coercive field is found to increase with cadmium content up to x = 0.4, obeying Neel's two sublattice model and decrease thereafter showing existence of non-collinear spin interaction. The saturation magnetization and coercivity shows size dependent behavior. Y–K type ordering is present in all samples except x = 1. The DC electrical resistivity increases while the Curie temperature (T{sub c}) decreases, with increase in cadmium content. The DC resistivity of Y{sup 3+} added Mg-Cd ferrite is higher than that reported for pure samples and for ceramic method. Activation energy in paramagnetic region is higher than that in ferromagnetic region.},
doi = {10.1016/J.MATERRESBULL.2012.11.009},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 2,
volume = 48,
place = {United States},
year = {2013},
month = {2}
}