Mössbauer and MCD spectroscopy of the Fe3S4 nanoparticles synthesized by the thermal decomposition method with two different surfactants | Научно-инновационный портал СФУ

Mössbauer and MCD spectroscopy of the Fe3S4 nanoparticles synthesized by the thermal decomposition method with two different surfactants

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1016/j.cap.2021.02.013

Ключевые слова: ft-ir spectra, greigite, magnetic circular dichroism, mössbauer effect, surfactants, thermal decomposition

Аннотация: Greigite (Fe3S4) nanoparticles (NPs) were fabricated by the thermal decomposition method using two different surfactants: oleylamine (OLA) and 1-hexadecylamine (HDA). In both cases, the synthesized NPs were characterized as the Fe3S4 nanocrystals with minor inclusions of Fe9S11 phase. FT-IR spectroscopy and thermo-gravimetric analysis allow concluding about OLA or HDA shells covering magnetic core of NPs. Mössbauer spectra has revealed deviations of iron ions distribution among crystal positions from that presented in literature for pure greigite. In accordance with these deviations, the pronounce changes are observed in the magnetic circular dichroism (MCD) spectra which manifest themselves as the spectrum shift to higher energies of electromagnetic waves and redistribution of the MCD maximum intensities. These effects are associated with a change in the density of electronic states in the samples due to the redistribution of iron ions between octahedral and tetrahedral positions in nanocrystals under the influence of surfactants. © 2021 Korean Physical Society

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Издание

Журнал: Current Applied Physics

Выпуск журнала: Vol. 25

Номера страниц: 55-61

ISSN журнала: 15671739

Издатель: Elsevier B.V.

Авторы

  • Ivantsov Ruslan D. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia)
  • Lin Chun-Rong (Natl Pingtung Univ, Dept Appl Phys, Pingtung 90003, Pingtung County, Taiwan)
  • Ivanova Oxana S. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Altunin Roman R. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Knyazev Yuriy (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Molokeev Maxim S. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Zharkov Sergey M. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Chen Ying-Zhen (Natl Pingtung Univ, Dept Appl Phys, Pingtung 90003, Pingtung County, Taiwan)
  • Lin En-Szu (Natl Pingtung Univ, Dept Appl Phys, Pingtung 90003, Pingtung County, Taiwan)
  • Chen Bing-Yi (Natl Pingtung Univ, Dept Appl Phys, Pingtung 90003, Pingtung County, Taiwan)
  • Shestakov Nikolai P. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia)
  • Edelman Irina S. (Kirensky Inst Phys, FRC KSC SB RAS, Krasnoyarsk 660036, Russia)

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