Iron environment non-equivalence in both octahedral and tetrahedral sites in NiFe2O4 nanoparticles: Study using Mössbauer spectroscopy with a high velocity resolution / Oshtrakh M.I., Ushakov M.V., Senthilkumar B., Selvan R.K., Sanjeeviraja C., Semionkin V.A. // AIP Conference Proceedings. - 2012. - V. 1489, l. . - P. 115-122.

ISSN:

0094243X

Type:

Conference Paper

Abstract:

Mössbauer spectrum of NiFe2O4 nanoparticles was measured at room temperature in 4096 channels. This spectrum was fitted using various models, consisting of different numbers of magnetic sextets from two to twelve. Non-equivalence of the 57Fe microenvironments due to various probabilities of different Ni2+ numbers surrounding the octahedral and tetrahedral sites was evaluated and at least 5 different microenvironments were shown for both sites. The fit of the Mössbauer spectrum of NiFe 2O4 nanoparticles using ten sextets showed some similarities in the histograms of relative areas of sextets and calculated probabilities of different Ni2+ numbers in local microenvironments. © 2012 American Institute of Physics.

Author keywords:

57Fe in octahedral and tetrahedral sites.; hyperfine parameters; Mössbauer spectroscopy; nickel ferrite nanoparticles

Index keywords:

нет данных

DOI:

10.1063/1.4759479

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874194880&doi=10.1063%2f1.4759479&partnerID=40&md5=80e789da38347eb23d35a53b560aa642

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874194880&doi=10.1063%2f1.4759479&partnerID=40&md5=80e789da38347eb23d35a53b560aa642
Affiliations	Department of Physical Techniques and Devices for Quality Control, Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russian Federation; Department of Experimental Physics, Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russian Federation; Solid State Ionics and Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore - 641 046, India; School of Physics, Alagappa University, Karaikudi - 630 006, Tamil Nadu, India
Author Keywords	57Fe in octahedral and tetrahedral sites.; hyperfine parameters; Mössbauer spectroscopy; nickel ferrite nanoparticles
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Correspondence Address	Oshtrakh, M.I.; Department of Physical Techniques and Devices for Quality Control, Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russian Federation
Conference name	International Conference on Mossbauer Spectroscopy in Materials Science - 2012, MSMS 2012
Conference date	11 June 2012 through 15 June 2012
Conference location	Olomouc
ISBN	9780735411012
Language of Original Document	English
Abbreviated Source Title	AIP Conf. Proc.
Source	Scopus