Synthesis and properties of nanoscale films of the Y2O3–Fe2O3 system on silicon
https://doi.org/10.17586/2220-8054-2018-9-3-417-423
Abstract
Thin films of the Y2O3–Fe2O3/Si system with nanometer-scale thicknesses were synthesized by centrifugation with application of sol and gel of YFeO3. It was found that the samples formed from the gel are characterized by the following composition: Fe2O3, Fe3O4, and Y2O3, YFeO3, which is not consistent with the data, obtained for powder products, and can indicate that the thermal annealing conditions were insufficient for the formation of a single-phase product. For the first time, the magnetic properties of thin ferrite films of yttrium on the surface of the silicon formed from the gel were measure. The nature of the hysteresis loop of nanofilms of yttrium ferrite with different parameters of time and speed of centrifugation suggests that the samples exhibit soft magnetic properties of a ferromagnet. The correlation between the value of specific magnetization and thickness of nanofilms was established.
Supporting agencies: The study was supported by RFBR grant (no. 18-03-00354a). This work was performed using the equipment of the Scientific Equipment Sharing Centre, Voronezh State University, Voronezh, Russia, and the Department of Magnetism, Lomonosov Moscow State University, Moscow, Russia; the equipment that was used at the Department of Magnetism was purchased out of the funds of the Moscow State University Development Program.
About the Authors
I. A. Milyaeva
Voronezh State University
Russian Federation
Russian Federation
Voronezh, 394018
N. S. Perov
Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119991
V. V. Bessalova
Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119991
M. V. Berezhnaya
Voronezh State University
Russian Federation
Russian Federation
Voronezh, 394018
V. O. Mittova
Burdenko Voronezh State Medical University
Russian Federation
Russian Federation
Voronezh, 394036
Anh Tien Nguyen
Ho Chi Min City University of Education
Viet Nam
Viet Nam
Ho Chi Min City
I. Ya. Mittova
Voronezh State University
Russian Federation
Russian Federation
Voronezh, 394018
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Review
For citations:
Milyaeva I.A., Perov N.S., Bessalova V.V., Berezhnaya M.V., Mittova V.O., Nguyen A., Mittova I.Ya. Synthesis and properties of nanoscale films of the Y2O3–Fe2O3 system on silicon. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(3):417-423. https://doi.org/10.17586/2220-8054-2018-9-3-417-423
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