2011/09/30 by Y. J. Um, J. T. Park, Baehyun Min +7
Materials Science · Physics and Astronomy · #Anharmonicity #Condensed matter physics #Coupling (piping) #Inelastic neutron scattering #Inelastic scattering #Iron-based superconductors research #Lattice (music) #Materials science #Phonon #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Raman scattering #Raman spectroscopy #Scattering #Superconductivity #Superconductivity in MgB2 and Alloys #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.85.012501
published as Physical Review B 85 012501 (2012) · 5 pages, 3 figures, 1 table
arxiv created 2012/01/12 · openalex publication_date 2012/01/12 · arxiv updated 2012/01/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report an investigation of the lattice dynamical properties of LiFeAs using inelastic light scattering. Five of the six expected phonon modes are observed. The temperature evolution of their frequencies and linewidths is in good agreement with an anharmonic-decay model. We find no evidence for substantial electron-phonon coupling, and no superconductivity-induced phonon anomalies.