Obtaining and research of the properties of magnetic-luminescent hybrid structures based on iron oxide (Fe 3 O 4 ) with semiconductor shells

D. A. Kafeeva; Кафеева Д. А.; D. A. Kurshanov; Куршанов Д. А.; A. Y. Dubavik; Дубовик А. Ю.

doi:10.31857/S0367676523701399

Obtaining and research of the properties of magnetic-luminescent hybrid structures based on iron oxide (Fe₃O₄) with semiconductor shells

Autores: Kafeeva D.A.¹, Kurshanov D.A.¹, Dubavik A.Y.¹
Afiliações:
1. ITMO University,
Edição: Volume 87, Nº 6 (2023)
Páginas: 801-806
Seção: Articles
URL: https://edgccjournal.org/0367-6765/article/view/654376
DOI: https://doi.org/10.31857/S0367676523701399
EDN: https://elibrary.ru/VKXGGK
ID: 654376

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Resumo

The high-temperature organic synthesis of hydrophobic superparamagnetic nanocomposites of the Fe₃O₄/ZnS and Fe₃O₄/ZnSe core–shell type is discussed. An analysis of the absorption, luminescence, magnetic circular dichroism (MCD) and morphology spectra of hydrophobic magnetoluminescent nanocomposites is presented. It is shown that nanocomposites have luminescent properties, and the growth of the shell on the Fe₃O₄ core retains the magnetic properties of the particles. An analysis of the MCD spectra shows that the magnetic field induces spin-dependent chiral magneto-optical activity. An estimate of the dependence of the g factor on the magnitude and sign of the external magnetic field demonstrates a change in the magnetization of the resulting nanocomposites relative to Fe₃O₄.

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