Induced size effect on NixCo1-xfe2O4 (0.1≤ × ≤0.9)

Ajay Shankar; Sandeep Kumar; Sanjeeve Thakur; Rajni Porwal; R. P. Pant

doi:10.5185/amlett.2012.6370

Induced size effect on Ni_xCo_1-xfe₂O₄ (0.1≤ × ≤0.9)

Ajay Shankar, Sandeep Kumar, Sanjeeve Thakur, Rajni Porwal, R. P. Pant

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Nanocrystalline Ni_xCo_1-xFe₂O₄ were synthesized and studied for their structural and magnetic properties. The effect of doping ion concentration on lattice parameter, crystallite size and the lattice strain pertaining to the ionic radii has been investigated. Electron microscopy supports the parameters and gives morphological view of the system. The magnetic measurement reveals the information on the effect of stoichiometry variation in existing superparamagnetism. Further, the spin dynamics and their role on dipolar interactions, extent of superexchange and spin-spin relaxation among nanoparticles have been investigated. Also, an attempt has been made to understand the UV irradiation effect on photosensitive Co²⁺ ion on Ni ferrite by in-situ electron spin resonance measurements.

Original language	English
Pages (from-to)	415-420
Number of pages	6
Journal	Advanced Materials Letters
Volume	3
Issue number	5
DOIs	https://doi.org/10.5185/amlett.2012.6370
Publication status	Published - Nov 2012
Externally published	Yes

Keywords

Core-shell structure
Dipolar interactions
Esr
Strain
Superparamagnetism

ASJC Scopus subject areas

General Materials Science

Access to Document

10.5185/amlett.2012.6370

Cite this

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title = "Induced size effect on NixCo1-xfe2O4 (0.1≤ × ≤0.9)",

abstract = "Nanocrystalline NixCo1-xFe2O4 were synthesized and studied for their structural and magnetic properties. The effect of doping ion concentration on lattice parameter, crystallite size and the lattice strain pertaining to the ionic radii has been investigated. Electron microscopy supports the parameters and gives morphological view of the system. The magnetic measurement reveals the information on the effect of stoichiometry variation in existing superparamagnetism. Further, the spin dynamics and their role on dipolar interactions, extent of superexchange and spin-spin relaxation among nanoparticles have been investigated. Also, an attempt has been made to understand the UV irradiation effect on photosensitive Co2+ ion on Ni ferrite by in-situ electron spin resonance measurements.",

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AU - Shankar, Ajay

AU - Kumar, Sandeep

AU - Thakur, Sanjeeve

AU - Porwal, Rajni

AU - Pant, R. P.

PY - 2012/11

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AB - Nanocrystalline NixCo1-xFe2O4 were synthesized and studied for their structural and magnetic properties. The effect of doping ion concentration on lattice parameter, crystallite size and the lattice strain pertaining to the ionic radii has been investigated. Electron microscopy supports the parameters and gives morphological view of the system. The magnetic measurement reveals the information on the effect of stoichiometry variation in existing superparamagnetism. Further, the spin dynamics and their role on dipolar interactions, extent of superexchange and spin-spin relaxation among nanoparticles have been investigated. Also, an attempt has been made to understand the UV irradiation effect on photosensitive Co2+ ion on Ni ferrite by in-situ electron spin resonance measurements.

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