The Magnetic Structure of NiFe2O4 Nanoparticles

被引：6
|
作者：
Kamzin, A. S. [1 ]
Bingolbali, A. [2 ]
Dogan, N. [3 ]
Yesil, Z. [4 ]
Asilturk, M. [5 ]
机构：
[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[2] Yildiz Tech Univ, Dept Bioengn, TR-34210 Istanbul, Turkey
[3] Gebze Inst Technol, Dept Phys, TR-41400 Kocaeli, Turkey
[4] Akdeniz Univ, Dept Chem, TR-07058 Antalya, Turkey
[5] Akdeniz Univ, Dept Mat Sci & Engn, TR-07058 Antalya, Turkey
来源：
TECHNICAL PHYSICS LETTERS | 2019年 / 45卷 / 10期
关键词：
magnetic nanoparticles (MNPs); ferrite spinel MNPs; magnetic structure of MNPs; Mossbauer spectroscopy; NONEQUILIBRIUM CATION DISTRIBUTION; CANTED SPIN ARRANGEMENT; NICKEL FERRITE; MOSSBAUER; POLYOL;
D O I：
10.1134/S1063785019100092
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The Mossbauer studies of the magnetic structure of nickel ferrite (NiFe2O4) nanoparticles (NPs) are presented. It is shown that the redistribution of ions over nonequivalent crystallographic positions occurs upon a decrease in the size of NiFe2O4 crystallites to nanovalues, thus leading to the structural transformation of NiFe2O4 nanoparticles from inverse spinel to mixed spinel. It has been established that the magnetic moments of Fe ions in the volume of NiFe2O4 nanoparticles are ferromagnetically (collinearly) ordered, being noncollinear (or oblique) in the near-surface layer probably due to the frustration of moments in the near-surface layer of nanoparticles.
引用
收藏
页码：1008 / 1011
页数：4
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