Equivalence of pseudogap and pairing energy in a cuprate high-temperature superconductor
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912042890297344 |
|---|---|
| author | Niu, Jiasen Larrazabal, Maialen Ortego Gozlinski, Thomas Sato, Yudai Bastiaans, Koen M. Benschop, Tjerk Ge, Jian-Feng Blanter, Yaroslav M. Gu, Genda Swart, Ingmar Allan, Milan P. |
| author_facet | Niu, Jiasen Larrazabal, Maialen Ortego Gozlinski, Thomas Sato, Yudai Bastiaans, Koen M. Benschop, Tjerk Ge, Jian-Feng Blanter, Yaroslav M. Gu, Genda Swart, Ingmar Allan, Milan P. |
| contents | The pseudogap stands out in the phase diagram of the cuprate high-temperature superconductors because its origin and relationship to superconductivity remain elusive. The origin of the pseudogap has been debated, with competing hypotheses attributing it to preformed electron pairs or local order, such as charge density waves. Here, we present unambiguous evidence supporting the pairing scenario, using local shot-noise spectroscopy measurements in Bi2Sr2CaCu2O8+δ. Our data demonstrates that the pseudogap energy coincides with the onset of electron pairing, and is spatially heterogeneous with values reaching up to 70 meV. Our results exclude a pure local order origin of the pseudogap, link the pseudogap to Cooper pair formation, and show that the limiting factor for higher Tc in cuprates is phase coherence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_15928 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Equivalence of pseudogap and pairing energy in a cuprate high-temperature superconductor Niu, Jiasen Larrazabal, Maialen Ortego Gozlinski, Thomas Sato, Yudai Bastiaans, Koen M. Benschop, Tjerk Ge, Jian-Feng Blanter, Yaroslav M. Gu, Genda Swart, Ingmar Allan, Milan P. Superconductivity Strongly Correlated Electrons The pseudogap stands out in the phase diagram of the cuprate high-temperature superconductors because its origin and relationship to superconductivity remain elusive. The origin of the pseudogap has been debated, with competing hypotheses attributing it to preformed electron pairs or local order, such as charge density waves. Here, we present unambiguous evidence supporting the pairing scenario, using local shot-noise spectroscopy measurements in Bi2Sr2CaCu2O8+δ. Our data demonstrates that the pseudogap energy coincides with the onset of electron pairing, and is spatially heterogeneous with values reaching up to 70 meV. Our results exclude a pure local order origin of the pseudogap, link the pseudogap to Cooper pair formation, and show that the limiting factor for higher Tc in cuprates is phase coherence. |
| title | Equivalence of pseudogap and pairing energy in a cuprate high-temperature superconductor |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2409.15928 |