TO(Γ) mode resonances in the rare-earth nitrides

Far infrared measurements of the absorption into the IR-active TO(Γ) mode are reported for a selection of the rare-earth mononitrides. The frequencies harden as anticipated by ≈15% as the lattice constant shrinks by ≈6% from SmN to LuN, though they are typically ∼25% softer than the LSDA+U predictio...

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Bibliographic Details
Main Authors: W. F. Holmes-Hewett, R. G. Buckley, T. J. Butler, C. Pot, K. Van Koughnet, B. J. Ruck, H. J. Trodahl
Format: Article
Language:English
Published: AIP Publishing LLC 2022-07-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0098290