Analysis of low-temperature FMR spectra of Fe3O4 and ZnFe2O4 nanoparticles synthesized using organic molecules

被引：4
|
作者：
Sova, K. Yu [1 ]
Vakula, A. S. [1 ]
Tarapov, S., I [1 ]
Belous, A. G. [2 ]
Solopan, S. O. [2 ]
机构：
[1] Natl Acad Sci Ukraine, O Ya Usikov Inst Radiophys & Elect, UA-61085 Kharkov, Ukraine
[2] Natl Acad Sci Ukraine, Inst Gen & Inorgan Chem, UA-03142 Kiev, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2021年 / 47卷 / 03期
关键词：
nanoparticles; nanopowders; ferromagnetic resonance; microwave frequencies; low temperatures; organic molecules; FERROMAGNETIC-RESONANCE;
D O I：
10.1063/10.0003522
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The ferromagnetic resonance (FMR) spectra of Fe3O4 and ZnFe2O4 nanoparticles with organic synthesis products were studied at T = 4.2 K. It was determined that the sintering of nanoparticles induced by postsynthesis heat treatment forms a mechanically unstable transition layer between them. Changes in the FMR spectra of Fe3O4 nanoparticles synthesized by precipitation in microemulsions using octylphenol ethoxylate and by the cryochemical method are mainly determined by the field of dipole-dipole interaction between nanoparticles.
引用
收藏
页码：220 / 227
页数：8
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