Induced Size Effect On NixCo1-xFe2O4 (0.1 ≤ X ≤ 0.9)
Induced Size Effect On NixCo1-xFe2O4 (0.1 ≤ X ≤ 0.9)
复制标题
NixCo1-xFe2O4 上的诱导尺寸效应 (0.1 ≤ X ≤ 0.9)
DOI：
10.5185/amlett.2012.6370
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
R. Pant
中科院分区：
文献类型：
--
作者：
A. Shankar;Sandeep Kumar;S. Thakur;R. Porwal;R. Pant
合成了NixCo_（1-x）Fe_2 O_4纳米晶，并对其结构和磁性进行了研究。研究了掺杂离子浓度对晶格常数、晶粒尺寸以及与离子半径有关的晶格应变的影响。电子显微镜支持的参数，并给出系统的形态视图。磁性测量揭示了现有超顺磁性中化学计量比变化的影响。此外，自旋动力学和它们的作用的偶极相互作用，超交换和自旋-自旋弛豫纳米粒子之间的程度进行了研究。此外，还尝试通过电子自旋共振（ESR）原位测量研究了紫外辐照对Ni铁氧体上光敏Co2+离子的影响。版权所有© 2012 VBRI Press.
Nanocrystalline NixCo1-xFe2O4 were synthesized and studied for their structural and magnetic properties. The effect of doping ion concentration on lattice parameter, crystallite size and the lattice strain pertaining to the ionic radii has been investigated. Electron microscopy supports the parameters and gives morphological view of the system. The magnetic measurement reveals the information on the effect of stoichiometry variation in existing superparamagnetism. Further, the spin dynamics and their role on dipolar interactions, extent of superexchange and spin-spin relaxation among nanoparticles have been investigated. Also, an attempt has been made to understand the UV irradiation effect on photosensitive Co 2+ ion on Ni ferrite by in-situ electron spin resonance measurements. Copyright © 2012 VBRI Press.