Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1088/2053-1591/1/2/025033

Ключевые слова: iron sulfide Fe3S4, iron oxide Fe3O4, magnetic nanoparticles, Mossbauer spectroscopy, magnetic circular dichroism, ab-initio band structure calculations

Аннотация: Iron oxide magnetite (Fe3O4) should be a reasonable analog for conception and understanding of the magnetic properties of iron sulfide greigite (Fe3S4)-one of the most required magnetic materials having numerous applications but being far from the complete understanding now. We present here a comparative study of the Mossbauer effect (ME) and the magnetic circular dichroism (MCD) spectroscopy of Fe3O4 and Fe3S4 nanoparticles. The ME spectrum parameters of Fe3S4 are shown to distinguish strongly from that of Fe3O4, and the MCD spectrum shapes are shown to be absolutely different for two compounds. To clarify the origin of the Fe3S4 MCD spectrum we have performed ab initio band structure calculations and identified the MCD spectrum features with the transitions between calculated energy states.

Журнал: MATERIALS RESEARCH EXPRESS

Выпуск журнала: Vol. 1, Is. 2

ISSN журнала: 20531591

Место издания: BRISTOL

Издатель: IOP PUBLISHING LTD

• Lin C.R. (Department of Applied Physics,National Pintung University of Education)
• Lyubutin I.S. (Shubnikov Institute of Crystallography,Russian Academy of Sciences)
• Tseng Y.T. (Department of Applied Physics,National Pintung University of Education)
• Ovchinnikov S.G. (Siberian Federal University)
• Ivantsov R.D. (L.V. Kirensky Institute of Physics,Siberian Branch of Russian Academy of Sciences)
• Edelman I.S. (L.V. Kirensky Institute of Physics,Siberian Branch of Russian Academy of Sciences)
• Fedorov A.S. (Siberian Federal University)
• Kuzubov A.A. (Siberian Federal University)
• Fedorov D.A. (University of Nevada)
• Starchikov S.S. (Shubnikov Institute of Crystallography,Russian Academy of Sciences)

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