This article is cited in 2 papers

Ferroelectricity

The phase composition and structure of the BiFeO$_3$ film grown on MgO(001) substrate by high frequency cathode deposition in oxygen atmosphere

A. V. Pavlenko^ab, D. V. Stryukov^a, S. P. Kubrin<sup>b

a</sup> Southern Research Center of the Russian Academy of Sciences, Rostov-on-Don, Russia
^b Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia

Abstract: The crystal structure and Mossbauer spectroscopy studies results for BiFeO$_3$ film growth on the MgO(001) single crystal substrate are present in the paper. It been shown that film have high crystal perfection and low defectiveness which results in appearing of narrow lines during the $\theta$–2$\theta$ and $\varphi$ scanning and the small (lower than 0.7$^\circ$) disorientation of film and substrate crystal axes. It is been revealed that unit cell of BiFeO$_3$/MgO(001) heterostructure possess monoclinic symmetry and deformation of unit cell is negligible. The Mossbauer study shows that magnetic subsystem of film has spatial spin-modulated structure with zero value of anharmonicity parameter (m). This indicate that at room temperature the magnetic anisotropy changes from the “easy axis” type to “easy plane” type.

Keywords: thin films, bismuth ferrite, Mossbauer effect.

Received: 18.09.2021
Revised: 18.09.2021
Accepted: 04.10.2021

DOI: 10.21883/FTT.2022.02.51932.215

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