IR spectroscopy of the low-frequency phonon spectrum of the TbFe3(BO3)4 single-crystal

• DOI: 10.1063/1.4904002
• Publication Date: 2015-01-05T18:30:06Z
• Authors: V. S. Kurnosov; V. V. Tsapenko; L. N. Bezmaternykh; I. A. Gudim
• Keywords: Lattice (music); Crystal (programming language); Lattice vibration

A study of the IR reflectance spectra TbFe3(BO3)4 crystal. We determined frequencies polar lattice phonons in high-temperature R32, and low- temperature P3121, phases. All 8A2 ⊕ 11E-modes were found phase, with nine them corresponding to lines absorption spectrum. In low-temperature 20A2 35E-modes allowed by symmetry crystal lattice, 25E-modes found.