Phonon self-energy computation in 1H-NbSe2 shows longitudinal optical phonon softening via Kohn ladder anti-crossing, Q_CDW fixed by susceptibility-e-ph coupling convolution, and chiral softened phonons.
Grimvall, The electron-phonon interaction in metals , Series of monographs on selected topics in solid state physics; 16 (North-Holland Pub
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Giant Kohn anomaly and chiral phonons in the charge density wave phase of 1H-NbSe$_2$
Phonon self-energy computation in 1H-NbSe2 shows longitudinal optical phonon softening via Kohn ladder anti-crossing, Q_CDW fixed by susceptibility-e-ph coupling convolution, and chiral softened phonons.