Size dependent magnetic and magneto-optical properties of Ni0.2Zn0.8Fe2O4 nanoparticles

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1016/j.jmmm.2016.02.062

Ключевые слова: Nickel zinc ferrite, Nanoparticles, Magnetic properties, MCD, Magnetic properties, MCD, Nanoparticles, Nickel zinc ferrite, Charge transfer, Dichroism, Ferrites, Magnetic properties, Magnetism, Nanoparticles, Nickel, Optical properties, Spectroscopy, Synthesis (chemical), Zinc, Zinc compounds, Annealing temperatures, External magnetic field, Intervalence charge transfer, Magnetic and magneto-optical properties, Magnetic circular dichroism spectra, Magnetic circular dichroisms, Magnetization dependence, Nickel Zinc ferrites, Nanomagnetics

Аннотация: Ni0.2Zn0.8Fe2O4 spinel nanoparticles have been synthesized by combustion method. Average particles size varies from 15.5 to 50.0 nm depending on annealing temperature. Correlations between particles size and magnetic and magneto-optical properties are investigated. Magnetization dependences on temperature and external magnetic field correspond to the sum of paramagnetic and superparamagnetic response. Critical size of single-domain transition is found to be 15.9 nm. Magnetic circular dichroism (MCD) studies of nickel zinc spinel are presented here for the first time. The features in magnetic circular dichroism spectrum are assigned to the one-ion d-d transitions in Fe3+ and Ni2+ ions, as well to the intersublattice and intervalence charge transfer transitions. The MCD spectrum rearrangement was revealed with the change of the nanoparticles size. (C) 2016 Elsevier B.V. All rights reserved.

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Издание

Журнал: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Выпуск журнала: Vol. 408

Номера страниц: 206-212

ISSN журнала: 03048853

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Авторы

  • Li O.A. (Siberian Federal University)
  • Edelman I.S. (L.V. Kirensky Institute of Physics,SB RAS)
  • Lin C.R. (Department of Applied Physics,National Pingtung University)
  • Chen H.Y. (Department of Applied Physics,National Pingtung University)
  • Hsu H.S. (Department of Applied Physics,National Pingtung University)
  • Wu K.W. (Department of Applied Physics,National Pingtung University)
  • Tseng Y.T. (Department of Applied Physics,National Pingtung University)
  • Lee J.S. (Department of Applied Physics,National Pingtung University)
  • Ovchinnikov S.G. (L.V. Kirensky Institute of Physics,SB RAS)
  • Shih K.Y. (Department of Applied Chemistry,National Pingtung University)

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