Structural and magnetic properties of Fe1-xCoxSe1.09 nanoparticles obtained by thermal decomposition

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1088/2053-1591/2/12/126501

Ключевые слова: nanoparticles, chalcogenide, iron-cobalt selenide, ferrimagnetism, paramagnetism, Mossbauer spectroscopy, Chalcogenide, Ferrimagnetism, Iron-cobalt selenide, Mo ssbauer spectroscopy, Nanoparticles, Paramagnetism

Аннотация: Aseries of Fe1-xCoxSe1.09(x = 0 to 1) nanoparticles were synthesized by thermal decomposition method. Particles in composition range Fe0.5Co0.5Se1.09 to CoSe1.09 crystallized in monoclinic structure of Co6.8Se8, while FeSe1.09 crystallized in hexagonal structure of FeSe achavalite. Magnetization dependences on temperature and exterПоказать полностьюnal magnetic field reveal complicated magnetic behavior and correspond to the sum of paramagnetic and superparamagnetic response. Mossbauer spectra contain several paramagnetic doublets with parameters corresponding to nonequivalent positions of divalent and trivalent iron cations with low spin. The nonequivalent positions appeared due to inhomogeneous distribution of Co ions or metal vacancies in iron surrounding.

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Издание

Журнал: MATERIALS RESEARCH EXPRESS

Выпуск журнала: Vol. 2, Is. 12

ISSN журнала: 20531591

Место издания: BRISTOL

Издатель: IOP PUBLISHING LTD

Авторы

  • Li O.A. (Siberian Federal University)
  • Shih K.Y. (Department of Applied Chemistry,National Pingtung University)
  • Lin C.R. (Department of Applied Physics,National Pingtung University)
  • Chen H.Y. (Department of Applied Physics,National Pingtung University)
  • Hsu H.S. (Department of Applied Physics,National Pingtung University)
  • Wu K.W. (Department of Applied Physics,National Pingtung University)
  • Tseng Y.T. (Department of Applied Physics,National Pingtung University)
  • Ovchinnikov S.G. (L. V. Kirensky Institute of Physics,SB RAS)
  • Bayukov O.A. (L. V. Kirensky Institute of Physics,SB RAS)
  • Edelman I.S. (L. V. Kirensky Institute of Physics,SB RAS)

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