Open AccessEu-induced lattice vibrations in Gd2O3 crystals
Author(s) -
A. N. Kislov,
A. F. Zatsepin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1391/1/012018
Subject(s) - phonon , impurity , ion , lattice vibration , lattice (music) , shell model , condensed matter physics , vibration , symmetry (geometry) , position (finance) , materials science , physics , molecular physics , atomic physics , geometry , quantum mechanics , mathematics , finance , acoustics , economics
The effect of trivalent Eu impurity occupying a position with the S 6 site symmetry in cubic Gd 2 O 3 on the latter’s structure and phonon spectrum is investigated. This study was performed by means of computer modeling within a shell model. The equilibrium structures and phonon local symmetrized densities of states were calculated. In addition, frequencies of localized vibrations induced by Eu ion were determined. The calculated results were compared with the available experimental data in literature.