Renormalized phonon spectrum in the Su–Schrieffer–Heeger model

Motivated to understand phonon spectrum renormalization in the ground state of the half-filled Su–Schrieffer–Heeger model, we use the Born–Oppenheimer approximation together with the harmonic approximation to evaluate semi-analytically the all-to-all real-space ionic force constants generated throug...

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Bibliographic Details
Main Authors: Stepan Fomichev, Mona Berciu
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:JPhys Materials
Subjects:
Online Access:https://doi.org/10.1088/2515-7639/acd723