Spectroscopic properties of superparamagnetic FemOn-SiO2 nanoparticle colloidal solutions

18th International Conference PhysicA.SPb

Smerdov, R.S.^1 ; Bocharova, T.V.^1 ; Gareev, K.G.^2

Saint Petersburg Polytechnic University, 29th Politechnicheskaya Str., Saint-Petersburg

195251, Russia^1

Saint Petersburg Electrotechnical University LETI, 5th Prof. Popova Str., Saint-Petersburg

197376, Russia^2

关键词: Characteristic absorption;    Characteristic signal;    Colloidal solutions;    Magnetostatic interactions;    SiO2 Nanoparticles;    Sol-gel synthesis process;    Spectroscopic property;    Superparamagnetics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/769/1/012037/pdf
DOI  :  10.1088/1742-6596/769/1/012037

来源: IOP

【 摘 要 】

The investigation of optical and electron spin resonance (ESR) spectroscopic properties are carried out. Six characteristic absorption bands related to distinctive conglomerates of FemOnformed via sol-gel synthesis process on SiO2porous matrix are observed in optical spectra. ESR spectra investigation makes it possible to reveal small characteristic signal associated with magnetostatic interactions between conglomerates of FemOnnanoparticles.