Lattice Dynamics and Structural Phase Transitions in Eu2O3

• DOI: 10.1021/acs.inorgchem.1c00708
• Publication Date: 2021-06-18T16:11:42Z
• Authors: Jan Łażewski; Małgorzata Sternik; Paweł T. Jochym; Jochen Kalt; Svetoslav Stankov; Aleksandr I. Chum...; Jorg Göttlicher; Rudolf Rüffer; Tilo Baumbach; Przemysław Piekarz
• Keywords: Sesquioxide; Monoclinic crystal system; Lattice (music); Europium; Lattice constant

Using the density functional theory, we study structural and lattice dynamical properties of europium sesquioxide (Eu2O3) in cubic, trigonal, monoclinic phases. The obtained parameters energies Raman modes show a good agreement with available experimental data. Eu-partial phonon states calculated for cubic structure is compared nuclear inelastic scattering data from 20 nm thick Eu2O3 film deposited on YSZ substrate. A small shift spectrum to higher results compressive strain induced by On basis properties, analyze mechanisms transitions between different phases Eu2O3.