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

被引：13

作者：

Li, Oksana A. ^{[1
,2
]}

Lin, Chun-Rong ^{[1
]}

Chen, Hung-Yi ^{[1
]}

Hsu, Hua-Shu ^{[1
]}

Shih, Kun-Yauh ^{[3
]}

Edelman, Irina S. ^{[4
]}

Wu, Kai-Wun ^{[1
]}

Tseng, Yaw-Teng ^{[1
]}

Ovchinnikov, Sergey G. ^{[2
,4
]}

Lee, Jiann-Shing ^{[1
]}

机构：

[1] Natl Pingtung Univ, Dept Appl Phys, Pingtung 90003, Taiwan

[2] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[3] Natl Pingtung Univ, Dept Appl Chem, Pingtung 90003, Taiwan

[4] SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 408卷

关键词：

Nickel zinc ferrite; Nanoparticles; Magnetic properties; MCD; ZINC FERRITE; CATION DISTRIBUTION; NI; FE3O4; SPECTRA; STATE; TRANSITIONS; ALPHA-FE2O3; GAMMA-FE2O3;

D O I：

10.1016/j.jmmm.2016.02.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：206 / 212

页数：7

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