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- Publisher Website: 10.1038/s42005-022-01030-x
- Scopus: eid_2-s2.0-85140325706
- WOS: WOS:000871076300002
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Article: Spin-triplet pairing induced by near-neighbor attraction in the extended Hubbard model for cuprate chain
Title | Spin-triplet pairing induced by near-neighbor attraction in the extended Hubbard model for cuprate chain |
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Authors | |
Issue Date | 2022 |
Citation | Communications Physics, 2022, v. 5, n. 1, article no. 257 How to Cite? |
Abstract | In quantum materials, the electronic interaction and the electron-phonon coupling are, in general, two essential ingredients, the combined impact of which may drive exotic phases. Recently, an anomalously strong electron-electron attraction, likely mediated by phonons, has been proposed in one-dimensional copper-oxide chain Ba2−xSrxCuO3+δ. Yet, it is unclear how this strong near-neighbor attraction V influences the superconductivity pairing in the system. Here we perform accurate many-body calculations to study the extended Hubbard model with on-site Coulomb repulsion U > 0 and near-neighbor attraction V < 0 that could well describe the cuprate chain and likely other similar transition-metal materials with both strong correlations and lattice effects. We find a rich quantum phase diagram containing an intriguing Tomonaga-Luttinger liquid phase — besides the spin density wave and various phase separation phases — that can host dominant spin-triplet pairing correlations and divergent superconductive susceptibility. Upon doping, the spin-triplet superconducting regime can be further broadened, offering a feasible mechanism to realize p-wave superconductivity in realistic cuprate chains. |
Persistent Identifier | http://hdl.handle.net/10722/330866 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Qu, Dai Wei | - |
dc.contributor.author | Chen, Bin Bin | - |
dc.contributor.author | Jiang, Hong Chen | - |
dc.contributor.author | Wang, Yao | - |
dc.contributor.author | Li, Wei | - |
dc.date.accessioned | 2023-09-05T12:15:24Z | - |
dc.date.available | 2023-09-05T12:15:24Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Communications Physics, 2022, v. 5, n. 1, article no. 257 | - |
dc.identifier.uri | http://hdl.handle.net/10722/330866 | - |
dc.description.abstract | In quantum materials, the electronic interaction and the electron-phonon coupling are, in general, two essential ingredients, the combined impact of which may drive exotic phases. Recently, an anomalously strong electron-electron attraction, likely mediated by phonons, has been proposed in one-dimensional copper-oxide chain Ba2−xSrxCuO3+δ. Yet, it is unclear how this strong near-neighbor attraction V influences the superconductivity pairing in the system. Here we perform accurate many-body calculations to study the extended Hubbard model with on-site Coulomb repulsion U > 0 and near-neighbor attraction V < 0 that could well describe the cuprate chain and likely other similar transition-metal materials with both strong correlations and lattice effects. We find a rich quantum phase diagram containing an intriguing Tomonaga-Luttinger liquid phase — besides the spin density wave and various phase separation phases — that can host dominant spin-triplet pairing correlations and divergent superconductive susceptibility. Upon doping, the spin-triplet superconducting regime can be further broadened, offering a feasible mechanism to realize p-wave superconductivity in realistic cuprate chains. | - |
dc.language | eng | - |
dc.relation.ispartof | Communications Physics | - |
dc.title | Spin-triplet pairing induced by near-neighbor attraction in the extended Hubbard model for cuprate chain | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1038/s42005-022-01030-x | - |
dc.identifier.scopus | eid_2-s2.0-85140325706 | - |
dc.identifier.volume | 5 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 257 | - |
dc.identifier.epage | article no. 257 | - |
dc.identifier.eissn | 2399-3650 | - |
dc.identifier.isi | WOS:000871076300002 | - |