Mössbauer spectroscopy of NiFe2O4 nanoparticles: The effect of Ni2+ in the Fe3+ local microenvironment in both tetrahedral and octahedral sites

M. V. Ushakov; B. Senthilkumar; R. Kalai Selvan; I. Felner; M. I. Oshtrakh

doi:10.1016/j.matchemphys.2017.09.011

Mössbauer spectroscopy of NiFe₂O₄ nanoparticles: The effect of Ni²⁺ in the Fe³⁺ local microenvironment in both tetrahedral and octahedral sites

M. V. Ushakov
, B. Senthilkumar
, R. Kalai Selvan
, I. Felner
, M. I. Oshtrakh^*

^*Corresponding author for this work

Racah Institute of Physics

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

25 Scopus citations

Abstract

Two samples of combustion synthesized nickel ferrite nanoparticles were characterized using X-ray diffraction, scanning and transmission electron microscopy, magnetization measurements and Mössbauer spectroscopy with a high velocity resolution. It was shown that Mössbauer spectra of nickel ferrite can be well fitted by using ten magnetic sextets related to the different numbers of Ni²⁺ cations in the Fe³⁺ local microenvironments in both tetrahedral and octahedral sites supported by calculations of such probabilities. It was shown that increase of the number of Ni²⁺ cations in the ⁵⁷Fe local microenvironment around both sites leads to decrease of the hyperfine field.

Original language	English
Pages (from-to)	159-168
Number of pages	10
Journal	Materials Chemistry and Physics
Volume	202
DOIs	https://doi.org/10.1016/j.matchemphys.2017.09.011
State	Published - 1 Dec 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Magnetic properties
Mössbauer spectroscopy
Nickel ferrite nanoparticles
The Fe local microenvironment

Access to Document

10.1016/j.matchemphys.2017.09.011

Cite this

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title = "M{\"o}ssbauer spectroscopy of NiFe2O4 nanoparticles: The effect of Ni2+ in the Fe3+ local microenvironment in both tetrahedral and octahedral sites",

abstract = "Two samples of combustion synthesized nickel ferrite nanoparticles were characterized using X-ray diffraction, scanning and transmission electron microscopy, magnetization measurements and M{\"o}ssbauer spectroscopy with a high velocity resolution. It was shown that M{\"o}ssbauer spectra of nickel ferrite can be well fitted by using ten magnetic sextets related to the different numbers of Ni2+ cations in the Fe3+ local microenvironments in both tetrahedral and octahedral sites supported by calculations of such probabilities. It was shown that increase of the number of Ni2+ cations in the 57Fe local microenvironment around both sites leads to decrease of the hyperfine field.",

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year = "2017",

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doi = "10.1016/j.matchemphys.2017.09.011",

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T2 - The effect of Ni2+ in the Fe3+ local microenvironment in both tetrahedral and octahedral sites

AU - Ushakov, M. V.

AU - Senthilkumar, B.

AU - Kalai Selvan, R.

AU - Felner, I.

AU - Oshtrakh, M. I.

PY - 2017/12/1

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AB - Two samples of combustion synthesized nickel ferrite nanoparticles were characterized using X-ray diffraction, scanning and transmission electron microscopy, magnetization measurements and Mössbauer spectroscopy with a high velocity resolution. It was shown that Mössbauer spectra of nickel ferrite can be well fitted by using ten magnetic sextets related to the different numbers of Ni2+ cations in the Fe3+ local microenvironments in both tetrahedral and octahedral sites supported by calculations of such probabilities. It was shown that increase of the number of Ni2+ cations in the 57Fe local microenvironment around both sites leads to decrease of the hyperfine field.

KW - Magnetic properties

KW - Mössbauer spectroscopy

KW - Nickel ferrite nanoparticles

KW - The Fe local microenvironment

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