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