Crystal structure and vibrational spectra of hexagonal manganites YMnO3 and LuMnO3 under high pressure

Crystal structure and vibrational spectra of hexagonal manganites YMnO3 and LuMnO3 under high pressure

The structural and vibrational properties of the multiferroics YMnO3 and LuMnO3 have been studied by means of the x-ray diffraction and Raman spectroscopy at high pressures up to 29.3 and 31.2 GPa, respectively. The initial hexagonal structure with space group P63cm of both compounds remains unchang...

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Veröffentlicht in:Materials research express 2019-05, Vol.6 (8)
Hauptverfasser: Jabarov, S H, Dang, N T, Kichanov, S E, Kozlenko, D P, Dubrovinsky, L S, Park, Je-Geun, Lee, Seongsu, Mammadov, A I, Mehdiyeva, R Z, Savenko, B N, Nghia, N X, Khiem, L H, Lieu, N T T, Thao, L T P
Format: Artikel
Sprache:eng
Schlagworte:
crystal structure
high pressure
multiferroics
perovskite
vibrational properties
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Zusammenfassung:The structural and vibrational properties of the multiferroics YMnO3 and LuMnO3 have been studied by means of the x-ray diffraction and Raman spectroscopy at high pressures up to 29.3 and 31.2 GPa, respectively. The initial hexagonal structure with space group P63cm of both compounds remains unchanged in the entire pressure range. The anisotropic baric behaviors of lattice parameters and vibration modes of studied compounds were observed. The structural mechanisms of those phenomena are discussed.
ISSN:2053-1591
DOI:10.1088/2053-1591/ab2304