Structural and magnetic study of dysprosium substituted cobalt ferrite nanoparticles

Title
Structural and magnetic study of dysprosium substituted cobalt ferrite nanoparticles
Authors
Hemaunt KumarR.C. SrivastavaJitendra Pal SinghP. NegiH.M. AgrawalD. Das채근화
Keywords
Nanoparticles; Dy3þ doping; Raman Spectra; VSM andMossbauer
Issue Date
2016-01
Publisher
Journal of magnetism and magnetic materials
Citation
VOL 401, 16-21
Abstract
The present work investigates the magnetic behavior of Dy3+ substituted cobalt ferrite nanoparticles. X-ray diffraction studies reveal presence of cubic spinel phases in these nanoparticles. Raman spectra of these nanoparticles show change in intensity of Raman bands, which reflects cation redistribution in cubic spinel lattice. Saturation magnetization and coercivity decrease with increase of Dy3+concentration in these nanoparticles. Room temperature Mössbauer measurements show the cation redistribution in these nanoparticles and corroborates the results obtained from Raman Spectroscopic measurements. Decrease in magnetization of Dy3+ substituted cobalt ferrite is attributed to the reduction in the magnetic interaction and cation redistribution.
URI
http://pubs.kist.re.kr/handle/201004/58438
ISSN
03048853
Appears in Collections:
KIST Publication > Article
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