Analysis of the Magnetic Characteristics of Single-Domain Ferromagnetic and Superparamagnetic Nanoparticles in a Ni@C Nanocomposite

被引:0
|
作者
Gyulasaryan, H. T. [1 ]
机构
[1] NAS Armenia, Inst Phys Res, Ashtarak, Armenia
关键词
nickel phthalocyanines; solid-phase pyrolysis; singl-domain nanoparticles; magnetic moment;
D O I
10.1134/S1068337223030118
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The magnetic size effects of single-domain nickel nanoparticles encapsulated in a graphite-like carbon shell (Ni@C nanocomposites) have been studied. Along with ferro- and superparamagnetic characteristics, the samples exhibit paramagnetism due to surface nickel ions formed through charge transfer from the carbon matrix. A detailed analysis of the total curves of magnetization M(H) and coercivity at 10 K was carried out and the corresponding magnetic parameters were determined.
引用
收藏
页码:282 / 286
页数:5
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