Generalization of soft phonon modes
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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