INTERATOMIC INERACTIONS IN AMORPHOUS COMPOSITES (CoFeB)x(TiO2)1–x WITH DIFFERENT CONTENT OF METAL AND DIELECTRIC COMPONENT ACCORDING TO IR SPECTROSCOPY

  • Evelina P. Domashevskaya Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation https://orcid.org/0000-0002-6354-4799
  • Van Tu Chan Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation
  • Anatoly N. Lukin Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation https://orcid.org/0000-0001-6521-8009
  • Sergey V. Sitnikov Voronezh State Technical University 14, Moskovskii pr., 394026 Voronezh, Russian Federation https://orcid.org/0000-0002-9438-9234
  • Oleg V. Stognay Voronezh State Technical University 14, Moskovskii pr., 394026 Voronezh, Russian Federation https://orcid.org/0000-0002-2464-8376
Keywords: amorphous metal-containing composites, IR spectra, vibration modes, interatomic bonds.

Abstract

Purpose. By a method of ion-beam sputtering of two targets (one of the CoFeB alloy, the second of TiO2 on a rotating glass-substrate substrate, a series of samples were obtained with a gradient of the composition and thickness of the composite (Co40Fe40B20)x(TiO2)1-x on the diffraction
patterns of amorphous composites, a halo was found corresponding to the average interatomic distance close in magnitude to the interplanar spacing of the most intense diffraction lines in CoFe alloys.
Results. Using IR spectroscopy, the modes were identifi ed that correspond to interatomic bonds in amorphous composites (CoFeB)x (TiO2)1-x of various compositions. The presence of bonds with oxygen of all elements of the composite Fe – O, Co – O, Ti – O, B – O, as well as the formation of
intermediate chemical bonds Ti – O – B and Ti – O – Co between the atoms of the dielectric and metal components of the composite has been established.
Conclusions. Based on the data obtained, a model of amorphous composites (Co40Fe40B20)x(TiO2)1-x is proposed, in which metal particles are represented as a nucleus of metal CoFe clusters with a shell of d-metals oxides and borides/oxyborides distributed in a dielectric matrix of titanium dioxide TiO2-x.

 

 

SOURCE OF FINANCING
The work was supported by the Ministry of Education and Science of the Russian Federation as part of a state assignment to universities in the fi eld of scientifi c activity for 2017-2019. Projects No. 3.6263.2017 / WC and No. 16.8158.2017 / 8.9.

 

 

 

 

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Author Biographies

Evelina P. Domashevskaya, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Dr. Sci. (Phys.- Math.), Full Professor, Head of the Department of Solid State Physics and Nanostructures, Voronezh State University, Voronezh, Russian Federation; email: ftt@phys.vsu.ru. ORCID iD 0000-0002-6354-
4799.

Van Tu Chan, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Master of the Department of Solid State Physics and Nanostructures, Voronezh State University, Voronezh, Russian Federation; e-mail:ftt@phys.vsu.ru

Anatoly N. Lukin, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Cand. Sci. (Phys.-Math.), Associate Professor of the Department of Solid State Physics and Nanostructures, Voronezh State University, Voronezh, Russian Federation; e-mail: ckp_49@mail.ru. ORCID iD 0000-0001-6521-8009.

Sergey V. Sitnikov, Voronezh State Technical University 14, Moskovskii pr., 394026 Voronezh, Russian Federation

Dr. Sci. (Phys. -Math.), Professor of the Department of Solid State Physics, Voronezh State Technical University, Voronezh, Russian Federation; e-mail: sitnikov04@mail.ru. ORCID iD 0000-0002-9438-9234.

Oleg V. Stognay, Voronezh State Technical University 14, Moskovskii pr., 394026 Voronezh, Russian Federation

Dr. Sci. (Phys. -Math.), Professor of the Department of Solid State Physics, Voronezh
State Technical University, Voronezh, Russian Federation; e-mail: sto@sci.vrn.ru. ORCID iD
0000-0002-2464-8376.


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Published
2019-09-26
How to Cite
Domashevskaya, E., Chan, V., Lukin, A., Sitnikov, S., & Stognay, O. (2019). INTERATOMIC INERACTIONS IN AMORPHOUS COMPOSITES (CoFeB)x(TiO2)1–x WITH DIFFERENT CONTENT OF METAL AND DIELECTRIC COMPONENT ACCORDING TO IR SPECTROSCOPY. Kondensirovannye Sredy I Mezhfaznye Granitsy = Condensed Matter and Interphases, 21(3), 374-384. https://doi.org/https://doi.org/10.17308/kcmf.2019.21/1151
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