2021   03   az   p.27-33 A.I. Mammadov, S.H. Jabarov, R.Z. Mehdiyeva, R.E. Huseynov,
Atomic dynamics at high and low temperatures of BaFe11.1Sc0.9O19 hexaferrite		  pdf 

ABSTRACT

BaFe11.1Sc0.9O19 hexaferrite was synthesized and the crystal structure was studied by X-ray diffraction. It was found that under normal conditions and at room temperatures, the crystal structure of this compound has hexagonal symmetry with the P6/3mmc space group. The lattice parameters correspond to the values: a = 5.8842 Å and c = 23.1774 Å. Atomic dynamics were studied of BaFe11.1Sc0.9O19 hexaferrite in the range of low temperatures of - 190°C ≤ T ≤ 20°C and high temperatures of 20°C ≤ T ≤ 490°C. As a result of the analysis of the spectra obtained by the Raman spectroscopy method, it was determined that the structural phase transition does not occur in this compound over a wide temperature range -190°C ≤ T ≤ 490°C. At the room temperature obtained Raman modes are observed at both low and high temperatures.

Keywords: seqnetoelektrik, ferrimaqnit, heksaferrit, multiferroik, rentgen difraksiyası, Raman spektroskopiyası
PACS: 81.40.Vw, 61.05.С-, 77.80.B-

DOI:-

Received: 17.07.2021

AUTHORS & AFFILIATIONS

Institute of Physics of Azerbaijan National Academy of Sciences, 131 H. Javid ave, Baku, AZ-1143, Azerbaijan
E-mail: r.e.huseynov@gmail.com@jinr.ru 		REFERENCIES

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