Phonon-Mediated Long-Range Attractive Interaction in One-Dimensional Cuprates.
Phys Rev Lett
; 127(19): 197003, 2021 Nov 05.
Article
em En
| MEDLINE
| ID: mdl-34797146
ABSTRACT
Establishing a minimal microscopic model for cuprates is a key step towards the elucidation of a high-T_{c} mechanism. By a quantitative comparison with a recent in situ angle-resolved photoemission spectroscopy measurement in doped 1D cuprate chains, our simulation identifies a crucial contribution from long-range electron-phonon coupling beyond standard Hubbard models. Using reasonable ranges of coupling strengths and phonon energies, we obtain a strong attractive interaction between neighboring electrons, whose strength is comparable to experimental observations. Nonlocal couplings play a significant role in the mediation of neighboring interactions. Considering the structural and chemical similarity between 1D and 2D cuprate materials, this minimal model with long-range electron-phonon coupling will provide important new insights on cuprate high-T_{c} superconductivity and related quantum phases.
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MEDLINE
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article