Soft phonon mode dynamics in Aurivillius-type structures
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DOI: 10.1103/physrevb.96.134114
Abstract: We report the dynamics of soft phonon modes and their role towards the various structural transformations in Aurivillius materials by employing terahertz frequency-domain spectroscopy, atomic pair distribution function analysis, and first-principles calculations. We have chosen… read more here.
Keywords: phonon mode; soft phonon; dynamics aurivillius; phonon ... See more keywords
Generalization of soft phonon modes
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.134114
Abstract: Soft phonon modes describe a collective movement of atoms that transform a higher-symmetry crystal structure into a lower-symmetry crystal structure. Such structural transformations occur at finite temperatures, where the phonons (i.e., the low-temperature vibrational modes)… read more here.
Keywords: soft phonon; generalization soft; phonon; phonon modes ... See more keywords