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cond-mat.mtrl-sci2024
Systematic Absences of Optical Phonon Modes in Phonon Dispersion Measured by Electron Microscopy
Aowen Li, Paul Zeiger, Zuxian He +4
Phonon dispersion is widely used to elucidate the vibrational properties of materials. As an emerging technique, momentum-resolved vibrational spectroscopy in scanning transmission…
cond-mat.mtrl-sci2023★ 1 cited
Phonon vortices at heavy impurities in two-dimensional materials
De-Liang Bao, Mingquan Xu, Ao-Wen Li +3
The advent of monochromated electron energy-loss spectroscopy has enabled atomic-resolution vibrational spectroscopy, which triggered interest in spatially localized or quasi-local…